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A301638
Primes of the form 5^k + 5*k + 1.
1
2, 11, 48828181, 298023223876953251, 2910383045673370361328301, 258493941422821148397315216271863391739316284656524658203551
OFFSET
1,1
COMMENTS
The next term is too large to include.
The next term has 349 digits. - Harvey P. Dale, Dec 03 2018
FORMULA
a(n) = 5^A301635(n) + 5*A301635(n) + 1.
MATHEMATICA
Select[Table[5^n+5n+1, {n, 0, 550}], PrimeQ] (* Harvey P. Dale, Dec 03 2018 *)
CROSSREFS
Primes of the form b^k+b*k+1: A163115 (b=2), A180269 (b=3), this sequence (b=5).
Cf. A301635.
Sequence in context: A346144 A230229 A027736 * A309863 A110982 A079331
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Mar 25 2018
STATUS
approved