A300292 Numbers k such that k^k + 9 is a prime.

2, 130, 140

Offset

1,1

Comments

No more terms <= 7000. - Jon E. Schoenfield, Mar 16 2018

Links

Table of n, a(n) for n=1..3.

Prog

(PARI) isok(k) = ispseudoprime(k^k + 9); \\ Altug Alkan, Mar 16 2018

Crossrefs

Numbers k such that k^k + b is a prime: A300981 (b=-10), A300976 (b=-5), A100408 (b=-2), A100407 (b=2), A166852 (b=3), A100837 (b=4), A100838 (b=7), this sequence (b=9), A100839 (b=10), A173974 (b=43).

Cf. A074966.

Sequence in context: A294274 A099824 A351916 * A259109 A190578 A098533

Adjacent sequences: A300289 A300290 A300291 * A300293 A300294 A300295

Keyword

nonn,hard,more,bref

Author

Seiichi Manyama, Mar 16 2018

Status

approved