A100839 Numbers n such that n^n + 10 is prime.

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

Links

Table of n, a(n) for n=1..6.

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

Adjacent sequences: A100836 A100837 A100838 * A100840 A100841 A100842

Keyword

nonn,hard,more

Author

Cino Hilliard, Jan 07 2005

Status

approved