login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A302124
Primes of form 6*k^k - 5.
3
19, 157, 1531, 4941253, 100663291, 2324522929, 774660240526566167037696179607987213236023100283073
OFFSET
1,1
COMMENTS
The next term is too large to include.
The next term has 297 digits. - Harvey P. Dale, May 24 2021
FORMULA
a(n) = 6*A302123(n)^A302123(n) - 5.
MATHEMATICA
Select[Table[6k^k-5, {k, 50}], PrimeQ] (* Harvey P. Dale, May 24 2021 *)
CROSSREFS
Primes of form b*k^k - b + 1: A301870 (b=4), this sequence (b=6).
Sequence in context: A301398 A141923 A261791 * A217215 A159682 A197500
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Apr 01 2018
STATUS
approved