A302133 Numbers k such that 8*k^k - 7 is prime.

10, 800, 1266, 1395

Offset

1,1

Comments

The terms greater than or equal to 800 correspond to probable primes.

a(5) > 4000. - Tyler NeSmith, May 13 2021

Links

Table of n, a(n) for n=1..4.

Prog

(PARI) isok(k) = ispseudoprime(8*k^k - 7); \\ Altug Alkan, Apr 02 2018

Crossrefs

Numbers k such that b*k^k - b + 1 is prime: A110931 (b=2), A302132 (b=3), A301521 (b=4), A302123 (b=6), this sequence (b=8), A302134 (b=9), A302136 (b=10).

Sequence in context: A242373 A221045 A015057 * A322918 A233170 A211913

Adjacent sequences: A302130 A302131 A302132 * A302134 A302135 A302136

Keyword

nonn,more

Author

Seiichi Manyama, Apr 02 2018

Status

approved