A302091 Primes of form 6*k^k + 5.

11, 29, 167, 279941, 4941263

Offset: 1

Author

Seiichi Manyama, Apr 01 2018

Keywords

• nonn

Comments

The next term is too large to include.

The next term has 286 digits. - Harvey P. Dale, Oct 24 2021

Crossrefs

Primes of form b*k^k + b - 1: A216148 (b=2), A301811 (b=3), A301808 (b=4), A302089 (b=5), this sequence (b=6).

Cf. A302090.

Programs

Mathematica

Select[Table[6 n^n + 5, {n, 20}], PrimeQ] (* Harvey P. Dale, Oct 24 2021 *)

Formula

a(n) = 6*A302090(n+1)^A302090(n+1) + 5.