A182383 Primes of the form k^k - k + 1.

2, 3, 3121, 302875106592241

Offset: 1

Author

Alex Ratushnyak, Apr 27 2012

Keywords

• nonn

Comments

The next term has 340 digits. - T. D. Noe, Apr 27 2012

a(6) is too large to include in the b-file. - Pontus von Brömssen, Aug 11 2025

Examples

			a(2) = 5^5 - 5 + 1 = 3125 - 4 = 3121.
		

Links

• Pontus von Brömssen, Table of n, a(n) for n = 1..5

Crossrefs

Cf. A065797 (corresponding values of k, except k=0), A161471, A161472.

Programs

Mathematica

Unprotect[Power]; Power[0, 0] = 1; Protect[Power]; Select[Table[n^n - n + 1, {n, 0, 100}], PrimeQ] (* T. D. Noe, Apr 27 2012 *)