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.

A102910 Primes of the form 5^k + 8.

Original entry on oeis.org

13, 2524354896707237777317531408904915934954260592348873615264892578133
Offset: 1

Views

Author

Roger L. Bagula, Mar 01 2005

Keywords

Comments

The next term, 5^(335) + 8, is too large to include.

Crossrefs

Cf. A217133 (values of k).

Programs

  • Maple
    a:=proc(n) if isprime(5^n+8)=true then [n,5^n+8] else fi end: seq(a(n),n=1..400); # yields also the value of n
  • Mathematica
    a = Delete[Union[Flatten[Table[If [PrimeQ[5^n + 7 + 1] == True, 5^n + 7 + 1, 0], {n, 1, 400}]]], 1]

Extensions

Edited by N. J. A. Sloane, Apr 16 2006
Verified by Don Reble, Apr 25 2006