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.

A088554 Primes of the form (5^k-1)/4 or (5^k+3)/4.

Original entry on oeis.org

2, 7, 31, 157, 3907, 19531, 2441407, 12207031, 61035157, 305175781, 9313225746154785157, 177635683940025046467781066894531
Offset: 1

Views

Author

Cino Hilliard, Nov 17 2003

Keywords

Crossrefs

Cf. A004061.

Programs

  • Mathematica
    With[{kmax = 100}, Select[Flatten[Table[(5^k + {-1, 3})/4, {k, 0, kmax}]], PrimeQ]] (* Amiram Eldar, Jul 05 2024 *)

Extensions

Edited by Don Reble, May 03 2006