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A300292
Numbers k such that k^k + 9 is a prime.
2
OFFSET
1,1
COMMENTS
No more terms <= 7000. - Jon E. Schoenfield, Mar 16 2018
No more terms <= 30000. - Michael S. Branicky, Sep 02 2024
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
KEYWORD
nonn,hard,more,bref
AUTHOR
Seiichi Manyama, Mar 16 2018
STATUS
approved