A037001 -id:A037001 - cp's OEIS frontend

A050208 Starting positions of strings of 2 1's in the decimal expansion of Pi.

94, 153, 154, 174, 362, 395, 427, 437, 445, 494, 709, 758, 846, 921, 983, 984, 1129, 1185, 1349, 1503, 1534, 1656, 1849, 1896, 2458, 2497, 2724, 2740, 2779, 2904, 3253, 3398, 3493, 3503, 3504, 3534, 3735, 3822, 3844, 3847, 3963, 3992, 3993

Offset: 1

Eric W. Weisstein

Amiram Eldar, Table of n, a(n) for n = 1..10000
Eric Weisstein's World of Mathematics, Pi Digits
Index entries for sequences related to the number Pi

Cf. A037008, A037000, A037001, A037002, A037003, A037004, A037005, A036974, A037006, A037007, A014777, A134212, A134213, A134214, A134215, A134216, A134217, A134218, A134218, A134219.

a=RealDigits[Pi,10,8! ];lst={};Do[b=a[[1]][[n]];c=a[[1]][[n+1]];If[b==1&&c==1,AppendTo[lst,n-1]],{n,8!-1}];lst (* Vladimir Joseph Stephan Orlovsky, Jun 02 2009 *)
Flatten[Position[Partition[RealDigits[Pi,10,4000][[1]],2,1],?(#=={1,1}&) ]]-1 (* _Harvey P. Dale, Dec 01 2013 *)
SequencePosition[RealDigits[Pi,10,4000][[1]],{1,1}][[;;,1]]-1 (* Harvey P. Dale, Jul 08 2024 *)

Edited by N. J. A. Sloane, Aug 10 2010

A134212 Positions of 12 after decimal point in decimal expansion of Pi.

Original entry on oeis.org

148, 220, 243, 297, 483, 499, 607, 660, 710, 712, 963, 1080, 1199, 1299, 1350, 1425, 1843, 1864, 1924, 2013, 2287, 2295, 2307, 2341, 2498, 2632, 2938, 2976, 3258, 3322, 3328, 3346, 3426, 3455, 3499, 3690, 3713, 3823, 3892, 4056, 4160, 4220, 4252, 4372, 4414, 4450

Offset: 1

Artur Jasinski, Oct 14 2007

Amiram Eldar, Table of n, a(n) for n = 1..10000

Cf. A037008, A037000, A037001, A037002, A037003, A037004, A037005, A036974, A037006, A037007, A014777, A050208, A134213, A134214, A134215, A134216, A134217, A134218, A134218, A134219.

First /@ SequencePosition[RealDigits[Pi - 3, 10, 5000][[1]], {1, 2}] (* Amiram Eldar, Mar 20 2020 *)

More terms from Amiram Eldar, Mar 20 2020

A134213 Positions of 13 after decimal point in decimal expansion of Pi.

Original entry on oeis.org

110, 281, 363, 381, 525, 598, 627, 734, 744, 759, 859, 971, 1076, 1096, 1186, 1304, 1653, 1666, 1928, 1967, 1985, 2080, 2197, 2311, 2428, 2545, 2619, 2677, 2727, 2741, 2752, 2849, 3043, 3157, 3466, 3505, 3616, 3761, 3794, 3828, 3902, 4112, 4213, 4245, 4381

Offset: 1

Artur Jasinski, Oct 14 2007

Amiram Eldar, Table of n, a(n) for n = 1..10000

Cf. A000796, A037008, A037000, A037001, A037002, A037003, A037004, A037005, A036974, A037006, A037007, A014777, A050208, A134212, A134214, A134215, A134216, A134217, A134218, A134218, A134219.

First /@ SequencePosition[RealDigits[Pi - 3, 10, 5000][[1]], {1, 3}] (* Amiram Eldar, Mar 20 2020 *)

A134214 Positions of 14 after decimal point in decimal expansion of Pi.

Original entry on oeis.org

1, 103, 250, 295, 385, 610, 651, 670, 882, 895, 1382, 1612, 1628, 1636, 1638, 1696, 1812, 2067, 2118, 2121, 2331, 2539, 2606, 2666, 2685, 2725, 2763, 2782, 2844, 2888, 2916, 2966, 2971, 3013, 3034, 3096, 3125, 3135, 3186, 3237, 3250, 3325, 3362, 3475, 3497

Offset: 1

Artur Jasinski, Oct 14 2007

Amiram Eldar, Table of n, a(n) for n = 1..10000

Cf. A000796, A037008, A037000, A037001, A037002, A037003, A037004, A037005, A036974, A037006, A037007, A014777, A050208, A134212, A134213, A134215, A134216, A134217, A134218, A134218, A134219.

First /@ SequencePosition[RealDigits[Pi - 3, 10, 5000][[1]], {1, 4}] (* Amiram Eldar, Mar 20 2020 *)

A134215 Positions of 15 after decimal point in decimal expansion of Pi.

Original entry on oeis.org

3, 314, 324, 344, 393, 730, 922, 1030, 1098, 1100, 1114, 1315, 1342, 1436, 1657, 2148, 2150, 2215, 2327, 2389, 2501, 2565, 2688, 2957, 3000, 3093, 3099, 3275, 3280, 3354, 3414, 3464, 3522, 3532, 3553, 3644, 3858, 3959, 4362, 4389, 4536, 4597, 4645, 4828, 4866

Offset: 1

Artur Jasinski, Oct 14 2007

Amiram Eldar, Table of n, a(n) for n = 1..10000

Cf. A037008, A037000, A037001, A037002, A037003, A037004, A037005, A036974, A037006, A037007, A014777, A050208, A134212, A134213, A134214, A134216, A134217, A134218, A134218, A134219.

First /@ SequencePosition[RealDigits[Pi - 3, 10, 5000][[1]], {1, 5}] (* Amiram Eldar, Mar 20 2020 *)

More terms from Amiram Eldar, Mar 20 2020

A134216 Positions of 16 after decimal point in decimal expansion of Pi.

Original entry on oeis.org

40, 68, 238, 396, 791, 992, 1130, 1182, 1206, 1324, 1410, 1422, 1504, 1602, 1610, 1651, 1709, 1767, 2142, 2185, 2345, 2352, 2402, 2459, 2640, 2746, 3024, 3220, 3370, 3399, 3409, 3516, 3529, 3535, 3585, 3650, 3660, 3860, 3978, 3994, 4128, 4342, 4385, 4648, 4653

Offset: 1

Artur Jasinski, Oct 14 2007

Amiram Eldar, Table of n, a(n) for n = 1..10000

Cf. A037008, A037000, A037001, A037002, A037003, A037004, A037005, A036974, A037006, A037007, A014777, A050208, A134212, A134213, A134214, A134215, A134217, A134218, A134218, A134219.

First /@ SequencePosition[RealDigits[Pi - 3, 10, 5000][[1]], {1, 6}] (* Amiram Eldar, Mar 20 2020 *)

More terms from Amiram Eldar, Mar 20 2020

A134217 Positions of 17 after decimal point in decimal expansion of Pi.

Original entry on oeis.org

95, 138, 155, 319, 342, 428, 438, 547, 566, 568, 574, 640, 646, 786, 850, 887, 889, 961, 1086, 1134, 1152, 1419, 1577, 1621, 1625, 1758, 1788, 1850, 1946, 2109, 2187, 2491, 2573, 2591, 2947, 3177, 3310, 3393, 3419, 3539, 3789, 4094, 4218, 4418, 4430, 4444, 4510

Offset: 1

Artur Jasinski, Oct 14 2007

Amiram Eldar, Table of n, a(n) for n = 1..10000

Cf. A037008, A037000, A037001, A037002, A037003, A037004, A037005, A036974, A037006, A037007, A014777, A050208, A134212, A134213, A134214, A134215, A134216, A134218, A134218, A134219.

Flatten[Position[Partition[Rest[RealDigits[\[Pi],10,3000][[1]]],2,1], {1,7}]]  (* Harvey P. Dale, Apr 07 2011 *)

More terms from Harvey P. Dale, Apr 07 2011

More terms from Amiram Eldar, Mar 20 2020

A134218 Positions of 18 after decimal point in decimal expansion of Pi.

Original entry on oeis.org

424, 446, 471, 490, 587, 728, 752, 797, 847, 951, 1035, 1056, 1225, 1444, 1539, 1572, 1574, 1674, 1715, 1738, 1897, 2220, 2628, 2776, 2867, 2942, 2964, 2989, 3082, 3149, 3318, 3339, 3343, 3439, 3549, 3596, 3607, 3664, 3801, 3922, 3956, 4044, 4070, 4145, 4179, 4485

Offset: 1

Artur Jasinski, Oct 14 2007

Amiram Eldar, Table of n, a(n) for n = 1..10000

Cf. A037008, A037000, A037001, A037002, A037003, A037004, A037005, A036974, A037006, A037007, A014777, A050208, A134212, A134213, A134214, A134215, A134216, A134217, A134219.

First /@ SequencePosition[RealDigits[Pi - 3, 10, 5000][[1]], {1, 8}] (* Amiram Eldar, Mar 20 2020 *)

More terms from Amiram Eldar, Mar 20 2020

A134219 Positions of 19 after decimal point in decimal expansion of Pi.

Original entry on oeis.org

37, 168, 198, 246, 390, 417, 432, 495, 541, 704, 717, 843, 945, 975, 985, 997, 1047, 1166, 1227, 1237, 1345, 1384, 1427, 1535, 1618, 1641, 1733, 1881, 1915, 1944, 2054, 2128, 2821, 2856, 2872, 2897, 2902, 2905, 2918, 2944, 2960, 2997, 3030, 3166, 3337, 3358

Offset: 1

Artur Jasinski, Oct 14 2007

Amiram Eldar, Table of n, a(n) for n = 1..10000

Cf. A037008, A037000, A037001, A037002, A037003, A037004, A037005, A036974, A037006, A037007, A014777, A050208, A134212, A134213, A134214, A134215, A134216, A134217, A134218.

Transpose[SequencePosition[RealDigits[Pi,10,10000][[1]],{1,9}]][[1]]-1 (* The program uses the SequencePosition function from Mathematica version 10 *) (* Harvey P. Dale, May 09 2016 *)

A053746 Positions of '2's in the decimal expansion of Pi, where positions 1, 2, 3, ... correspond to digits 3, 1, 4, ...

Original entry on oeis.org

7, 17, 22, 29, 34, 54, 64, 74, 77, 84, 90, 94, 103, 113, 115, 136, 137, 141, 150, 161, 166, 174, 186, 187, 204, 222, 230, 242, 245, 261, 276, 281, 290, 293, 299, 303, 327, 330, 334, 336, 338, 355, 375, 381, 407

Offset: 1

Simon Plouffe, Feb 20 2000

See A037001 for the variant where digits 3, 1, 4, ... correspond to positions 0, 1, 2, ... - M. F. Hasler, Jul 28 2024

			Pi = 3.1415926... where the first '2' occurs as the 7th digit.

Vincenzo Librandi, Table of n, a(n) for n = 1..1000
Index entries for sequences related to the number Pi

Cf. A000796 (decimal expansion (or digits) of Pi).
Cf. A037001 (= a(n) - 1: the same with different offset).
Cf. A053745 - A053753 (similar for digits 1 through 9).
Cf. A035117 (first occurrence of at least n '1's), A050281 (n '2's), A050282, A050283, A050284, A050286, A050287, A048940 (n '9's).
Cf. A096755 (first occurrence of exactly n '1's), A096756, A096757, A096758, A096759, A096760, A096761, A096762, A096763 (exactly n '9's), A050279 (exactly n '0's).
Cf. A121280 = A068987 - 1: position of "123...n" in Pi's decimals.
Cf. A176341: first occurrence of n in Pi's digits.
Cf. A088566 (primes in this sequence).

Flatten[Position[RealDigits[Pi, 10, 1000][[1]], 2]] (* Vincenzo Librandi, Oct 07 2013 *)

A053746_upto(N=999)={localprec(N+20); select(d->d==2, digits(Pi\10^-N), 1)} \\ M. F. Hasler, Jul 28 2024

a(n) = A037001(n) + 1. - Georg Fischer, May 31 2021

Changed offset from 0 to 1 by Vincenzo Librandi, Oct 07 2013

cp's OEIS Frontend

A050208 Starting positions of strings of 2 1's in the decimal expansion of Pi.

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A134212 Positions of 12 after decimal point in decimal expansion of Pi.

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A134213 Positions of 13 after decimal point in decimal expansion of Pi.

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A134214 Positions of 14 after decimal point in decimal expansion of Pi.

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A134215 Positions of 15 after decimal point in decimal expansion of Pi.

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A134216 Positions of 16 after decimal point in decimal expansion of Pi.

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A134217 Positions of 17 after decimal point in decimal expansion of Pi.

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A134218 Positions of 18 after decimal point in decimal expansion of Pi.

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A134219 Positions of 19 after decimal point in decimal expansion of Pi.

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A053746 Positions of '2's in the decimal expansion of Pi, where positions 1, 2, 3, ... correspond to digits 3, 1, 4, ...