cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

Showing 1-5 of 5 results.

A107114 Two-digit numbers from the decimal expansion of Pi.

Original entry on oeis.org

31, 14, 41, 15, 59, 92, 26, 65, 53, 35, 58, 89, 97, 79, 93, 32, 23, 38, 84, 46, 62, 26, 64, 43, 33, 38, 83, 32, 27, 79, 95, 50, 2, 28, 88, 84, 41, 19, 97, 71, 16, 69, 93, 39, 99, 93, 37, 75, 51, 10, 5, 58, 82, 20, 9, 97, 74, 49, 94, 44, 45, 59, 92, 23, 30, 7, 78, 81, 16, 64, 40, 6
Offset: 1

Views

Author

Zak Seidov, May 12 2005

Keywords

Comments

Partition of decimal expansion of Pi into overlapping sublists of length 2. Cf. A105320: Two-digit numbers from the decimal expansion of pi (partition of decimal expansion of Pi into non-overlapping sublists of length 2.)

Crossrefs

Cf. A105320.

Programs

  • Mathematica
    Table[FromDigits[Partition[RealDigits[N[Pi, 200]][[1]], 2, 1][[i]]], {i, 100}]

A107115 Three-digit numbers from the decimal expansion of Pi (version 3) -- but see comments.

Original entry on oeis.org

314, 159, 265, 358, 979, 323, 846, 264, 338, 327, 950, 288, 419, 716, 939, 937, 510, 582, 97, 494, 459, 230, 781, 640, 628, 620, 899, 862, 803, 482, 534, 211, 706, 798, 214, 808, 651, 328, 230, 664, 709, 384, 460, 955, 58, 223, 172, 535, 940, 812, 848, 111, 745
Offset: 1

Views

Author

Zak Seidov, May 12 2005

Keywords

Comments

Partition of decimal expansion of Pi into non-overlapping sublists of length 3.
Because leading digits may be zero, not all terms have three decimal digits. The first two-digit term is a(19) and the first one-digit term is a(121). - Harvey P. Dale, Aug 21 2020

Crossrefs

Cf. A105320, A107114, A107116, A107117.

Programs

  • Mathematica
    Table[FromDigits[Partition[RealDigits[N[Pi, 201]][[1]], 3][[i]]], {i, 67}]
FromDigits/@Partition[RealDigits[Pi,10,200][[1]],3] (* Harvey P. Dale, Aug 21 2020 *)

Extensions

Definition modified by Harvey P. Dale, Aug 21 2020

A107117 Three-digit numbers from the decimal expansion of Pi (version 2).

Original entry on oeis.org

314, 415, 592, 265, 535, 589, 979, 932, 238, 846, 626, 643, 338, 832, 279, 950, 28, 884, 419, 971, 169, 939, 993, 375, 510, 58, 820, 97, 749, 944, 459, 923, 307, 781, 164, 406, 628, 862, 208, 899, 986, 628, 803, 348, 825, 534, 421, 117, 706, 679, 982, 214, 480, 86
Offset: 1

Views

Author

Zak Seidov, May 12 2005

Keywords

Comments

Partition of decimal expansion of Pi into overlapping sublists of length 3.

Links

Crossrefs

Cf. A105320, A107114, A107115, A107116.

Programs

  • Mathematica
    Table[FromDigits[Partition[RealDigits[N[Pi, 201]][[1]], 3, 2][[i]]], {i, 67}]
FromDigits/@Partition[RealDigits[Pi,10,111][[1]],3,2] (* Harvey P. Dale, Jul 31 2025 *)

A107116 Three-digit numbers from the decimal expansion of Pi (version 1).

Original entry on oeis.org

314, 141, 415, 159, 592, 926, 265, 653, 535, 358, 589, 897, 979, 793, 932, 323, 238, 384, 846, 462, 626, 264, 643, 433, 338, 383, 832, 327, 279, 795, 950, 502, 28, 288, 884, 841, 419, 197, 971, 716, 169, 693, 939, 399, 993, 937, 375, 751, 510, 105, 58, 582, 820, 209, 97, 974, 749, 494, 944, 445, 459, 592
Offset: 1

Views

Author

Zak Seidov, May 12 2005

Keywords

Comments

Partition of decimal expansion of Pi into overlapping sublists of length 3.

Crossrefs

Cf. A105320, A107114, A107115, A107117.

Programs

  • Mathematica
    Table[FromDigits[Partition[RealDigits[N[Pi, 201]][[1]], 3, 1][[i]]], {i, 67}]

A103868 Digital expansion of Pi: numbers from each pair of successive digits, reversed.

Original entry on oeis.org

13, 14, 95, 62, 35, 85, 79, 39, 32, 48, 26, 46, 33, 38, 72, 59, 20, 88, 14, 79, 61, 39, 99, 73, 15, 50, 28, 90, 47, 49, 54, 29, 3, 87, 61, 4, 26, 68, 2, 98, 89, 26, 8, 43, 28, 35, 24, 11, 7, 76, 89, 12, 84, 80, 56, 31, 82, 32, 60, 46, 7, 39, 48, 64, 90, 55, 50, 28, 32, 71, 52, 53
Offset: 1

Views

Author

Brian Bolte (bj.bolte(AT)gmail.com), May 29 2006

Keywords

Comments

Seen in some riddles.

Links

Crossrefs

Cf. A000796, A105320.

Programs

  • Mathematica
    FromDigits@# & /@ (Reverse@# & /@ Partition[ RealDigits[Pi, 10, 200][[1]], 2]) (* Robert G. Wilson v, Jun 23 2014 *)
Showing 1-5 of 5 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.