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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A078744 Numbers k such that A049614(k) + A000040(k) is prime.

Original entry on oeis.org

1, 4, 6, 7, 8, 13, 17, 18, 21, 41, 86, 101, 144, 368, 1232, 1713, 2431, 2897, 6122, 6240, 6876
Offset: 1

Views

Author

Jason Earls, Dec 21 2002

Keywords

Crossrefs

Cf. A000040, A034386, A049614, A078745.

Programs

  • PARI
    is(k) = ispseudoprime(prod(i=1, k, i^!isprime(i)) + prime(k)); \\ Jinyuan Wang, Jan 08 2021

Extensions

a(17)-a(18) from Jinyuan Wang, Jan 08 2021
a(19)-a(21) from Michael S. Branicky, Aug 10 2024
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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