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.

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A050657 Numbers n such that number of primes produced according to rules stipulated in Honaker's A048853 is 6.

Original entry on oeis.org

23, 41, 47, 53, 71, 79, 83, 91, 99, 113, 149, 181, 217, 229, 289, 293, 311, 349, 359, 361, 379, 417, 421, 433, 517, 523, 541, 587, 593, 617, 619, 661, 669, 699, 701, 719, 727, 769, 787, 789, 797, 881, 923, 933, 959, 969, 971, 1057, 1077, 1149, 1169, 1327
Offset: 1

Views

Author

Patrick De Geest, Jul 15 1999

Keywords

Examples

			Altering a(8)=91 gives 6 primes: 11, 31, 41, 61, 71 and 97.

Crossrefs

Cf. A048853, A050662, A050668.

A050658 Numbers n such that number of primes produced according to rules stipulated in Honaker's A048853 is 7.

Original entry on oeis.org

11, 17, 19, 21, 27, 39, 43, 51, 57, 69, 73, 81, 87, 93, 151, 179, 189, 203, 207, 211, 227, 233, 239, 241, 249, 251, 271, 277, 281, 299, 301, 303, 313, 323, 329, 351, 353, 371, 373, 381, 391, 403, 413, 423, 457, 467, 479, 509, 511, 513, 519, 531, 533, 537, 547
Offset: 1

Views

Author

Patrick De Geest, Jul 15 1999

Keywords

Examples

			Altering a(4)=21 gives 7 primes: 11, 31, 41, 61, 71, 23 and 29.

Crossrefs

Cf. A048853, A050662, A050669.

A050659 Numbers n such that number of primes produced according to rules stipulated in Honaker's A048853 is 8.

Original entry on oeis.org

13, 33, 49, 63, 77, 103, 127, 173, 209, 219, 223, 237, 247, 257, 259, 279, 297, 307, 317, 337, 341, 367, 369, 383, 393, 397, 399, 401, 419, 427, 449, 453, 461, 463, 473, 489, 491, 493, 499, 529, 539, 549, 557, 561, 563, 577, 579, 601, 613, 621, 623, 627
Offset: 1

Views

Author

Patrick De Geest, Jul 15 1999

Keywords

Examples

			Altering a(2)=33 gives 8 primes: 13, 23, 43, 53, 73, 83, 31 and 37.

Crossrefs

Cf. A048853, A050662, A050670.

A050660 Numbers n such that number of primes produced according to rules stipulated in Honaker's A048853 is 9.

Original entry on oeis.org

117, 121, 123, 129, 131, 137, 143, 163, 167, 193, 199, 201, 213, 243, 263, 267, 283, 287, 333, 343, 347, 407, 431, 437, 447, 451, 471, 477, 481, 483, 497, 501, 543, 553, 591, 603, 609, 633, 641, 667, 681, 687, 693, 697, 731, 737, 747, 753, 757, 759, 783
Offset: 1

Views

Author

Patrick De Geest, Jul 15 1999

Keywords

Examples

			Altering a(1)=117 gives 9 primes: 317, 617, 107, 127, 137, 157, 167, 197 and 113.

Crossrefs

Cf. A048853, A050662, A050671.

A050664 Primes p such that number of primes produced according to rules stipulated in Honaker's A048853 is 2.

Original entry on oeis.org

4409, 5077, 6841, 9199, 17863, 18637, 30817, 31477, 35279, 38557, 39953, 48527, 55871, 61441, 62137, 62459, 66359, 68023, 68087, 82997, 83579, 88951, 89329, 90437, 94117, 94343, 96329, 98981, 99643, 110753, 111857, 113453, 117307
Offset: 1

Views

Author

Patrick De Geest, Jul 15 1999

Keywords

Examples

			Altering a(1)=4409 gives 2 primes: 1409 and 4909.

Crossrefs

Cf. A048853, A050673, A050653.

A050665 Primes p such that number of primes produced according to rules stipulated in Honaker's A048853 is 3.

Original entry on oeis.org

2, 3, 5, 7, 929, 1117, 2459, 2819, 4111, 5189, 6427, 6959, 7561, 7841, 8849, 16741, 17053, 17761, 18089, 24659, 26119, 27329, 27689, 28843, 28933, 29243, 29311, 31601, 32621, 33107, 33289, 35977, 38273, 38431, 38959, 40361, 40471, 41467
Offset: 1

Views

Author

Patrick De Geest, Jul 15 1999

Keywords

Examples

			Altering a(1)=2 gives 3 primes: 3, 5 and 7.

Crossrefs

Cf. A048853, A050673, A050654.

A050666 Primes p such that number of primes produced according to rules stipulated in Honaker's A048853 is 4.

Original entry on oeis.org

97, 389, 659, 743, 953, 2423, 2971, 3037, 3083, 3593, 3727, 4177, 4363, 4813, 4889, 5261, 5519, 5717, 5813, 5939, 6197, 6449, 7001, 7057, 7331, 7963, 8123, 8179, 8353, 8501, 8707, 9293, 9587, 10247, 11261, 13147, 14813, 15263, 16547, 17573, 18077
Offset: 1

Views

Author

Patrick De Geest, Jul 15 1999

Keywords

Examples

			Altering a(1)=97 gives 4 primes: 17, 37, 47 and 67.

Crossrefs

Cf. A048853, A050673, A050655.

Programs

  • Mathematica
    A048853[n_] := Module[{idn = IntegerDigits[n], id, np = 0}, Do[id = idn; If[id[[j]] != k, id[[j]] = k; If[id[[1]] != 0 && PrimeQ[FromDigits[id]], np = np + 1]], {j, 1, Length[idn]}, {k, 0, 9}]; np]; Select[Table[{p, A048853[p]}, {p, Prime[Range[3000]]}], #[[2]] == 4&][[All,1]] (* Jean-François Alcover, May 09 2017 *)

A050667 Primes p such that number of primes produced according to rules stipulated in Honaker's A048853 is 5.

Original entry on oeis.org

29, 31, 37, 59, 61, 67, 89, 269, 331, 443, 487, 503, 521, 569, 571, 599, 733, 751, 761, 773, 811, 919, 983, 1291, 1303, 1319, 1511, 1567, 1777, 1847, 2179, 2473, 2579, 2633, 2671, 2707, 2927, 3299, 3449, 3797, 3847, 3877, 3943, 3989, 4139, 4339, 4561
Offset: 1

Views

Author

Patrick De Geest, Jul 15 1999

Keywords

Examples

			Altering a(1)=29 gives 5 primes: 19, 59, 79, 89 and 23.

Crossrefs

Cf. A048853, A050673, A050656.

A050668 Primes p such that number of primes produced according to rules stipulated in Honaker's A048853 is 6.

Original entry on oeis.org

23, 41, 47, 53, 71, 79, 83, 113, 149, 181, 229, 293, 311, 349, 359, 379, 421, 433, 523, 541, 587, 593, 617, 619, 661, 701, 719, 727, 769, 787, 797, 881, 971, 1327, 1373, 1399, 1471, 1543, 1741, 1747, 1811, 1889, 1913, 1979, 2027, 2129, 2137, 2161, 2251
Offset: 1

Views

Author

Patrick De Geest, Jul 15 1999

Keywords

Examples

			Altering a(1)=23 gives 6 primes: 13, 43, 53, 73, 83 and 29.

Crossrefs

Cf. A048853, A050673, A050657.

A050669 Primes p such that number of primes produced according to rules stipulated in Honaker's A048853 is 7.

Original entry on oeis.org

11, 17, 19, 43, 73, 151, 179, 211, 227, 233, 239, 241, 251, 271, 277, 281, 313, 353, 373, 457, 467, 479, 509, 547, 607, 631, 691, 809, 821, 839, 859, 863, 877, 911, 937, 941, 991, 1097, 1129, 1171, 1181, 1201, 1249, 1367, 1381, 1427, 1447, 1579, 1597
Offset: 1

Views

Author

Patrick De Geest, Jul 15 1999

Keywords

Examples

			Altering a(1)=11 gives 7 primes: 31, 41, 61, 71, 13, 17 and 19.

Crossrefs

Cf. A048853, A050673, A050658.
Previous Showing 11-20 of 23 results. Next

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