

A302133


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


3




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



