A302124 Primes of form 6*k^k - 5.

19, 157, 1531, 4941253, 100663291, 2324522929, 774660240526566167037696179607987213236023100283073

Offset: 1

Author

Seiichi Manyama, Apr 01 2018

Keywords

• nonn

Comments

The next term is too large to include.

The next term has 297 digits. - Harvey P. Dale, May 24 2021

Crossrefs

Primes of form b*k^k - b + 1: A301870 (b=4), this sequence (b=6).

Cf. A302091, A302123.

Programs

Mathematica

Select[Table[6k^k-5,{k,50}],PrimeQ] (* Harvey P. Dale, May 24 2021 *)

Formula

a(n) = 6*A302123(n)^A302123(n) - 5.