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 1-2 of 2 results.

A186293 (A007519(n)-1)/2.

Original entry on oeis.org

8, 20, 36, 44, 48, 56, 68, 96, 116, 120, 128, 140, 156, 168, 176, 200, 204, 216, 224, 228, 260, 284, 288, 296, 300, 308, 320, 336, 380, 384, 404, 428, 440, 464, 468, 476, 488, 504, 516, 524, 548, 564, 576, 596, 600, 608
Offset: 1

Views

Author

Marco Matosic, Feb 17 2011

Keywords

Crossrefs

Cf. A186305.

Programs

Formula

a(n) = A186294(n)-1.
a(n) = 4*A005123(n).

A186295 A007519(n)-2.

Original entry on oeis.org

15, 39, 71, 87, 95, 111, 135, 191, 231, 239, 255, 279, 311, 335, 351, 399, 407, 431, 447, 455, 519, 567, 575, 591, 599, 615, 639, 671, 759, 767, 807, 855, 879, 927, 935, 951, 975, 1007, 1031, 1047, 1095, 1127, 1151, 1191, 1199, 1215
Offset: 1

Views

Author

Marco Matosic, Feb 17 2011

Keywords

Programs

  • PARI
    isok(n) = isprime(p=n+2) && (p % 8 == 1) \\ Michel Marcus, Jul 16 2013

Formula

a(n) = 2*A186294(n) - 3. - Michel Marcus, Jul 16 2013
Showing 1-2 of 2 results.

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

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