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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A114257 Numbers n such that A014285(n) is prime.

Original entry on oeis.org

1, 3, 32, 63, 67, 75, 88, 99, 104, 115, 116, 120, 135, 144, 159, 167, 179, 188, 192, 195, 199, 204, 227, 239, 244, 260, 280, 283, 304, 323, 335, 348, 351, 379, 380, 384, 396, 412, 424, 436, 443, 503, 508, 523, 579, 632, 648, 651, 695, 723, 724, 736, 743, 752
Offset: 1

Views

Author

Zak Seidov, Nov 18 2005

Keywords

Crossrefs

Cf. A014285 (Sum i*prime(i); i=1..n), A114256 (Prime numbers in A014285).

Programs

  • PARI
    isok(n) = isprime(sum(i=1, n, i*prime(i))); \\ Michel Marcus, May 25 2018
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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