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

2, 3, 3121, 302875106592241

Offset

1,1

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

Links

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

Example

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

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 *)

Crossrefs

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

Sequence in context: A125612 A185156 A235935 * A257552 A038104 A290972

Adjacent sequences: A182380 A182381 A182382 * A182384 A182385 A182386

Keyword

nonn

Author

Alex Ratushnyak, Apr 27 2012

Status

approved