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A100839
Numbers k such that k^k + 10 is prime.
8
0, 1, 3, 7, 9, 39
OFFSET
1,3
COMMENTS
Here we interpret 0^0 as 1.
a(7) > 8672. - Daniel Suteu, Aug 06 2019
a(7) > 20000. - Michael S. Branicky, Jun 30 2024
MATHEMATICA
Prepend[Select[Range[100], PrimeQ[#^# + 10] &], 0] (* Stefan Steinerberger, Mar 15 2006 *)
PROG
(PARI) f1(n, a) = for(x=0, n, y=x^x+a; if(ispseudoprime(y), print1(y", ")))
CROSSREFS
Cf. A100842 (actual primes). - Daniel Starodubtsev, Aug 05 2019
Sequence in context: A031882 A199190 A075982 * A013624 A053366 A128052
KEYWORD
nonn,hard,more
AUTHOR
Cino Hilliard, Jan 07 2005
STATUS
approved