A162604 Primes of the form k^k-k!-9.

223, 16736887, 104857597567097991823359991, 11756638905368320778615010897169507936008298389569527

Offset

1,1

Comments

The values of A036679(k)-9 at indices k=4, 8, 20, 34, ... - R. J. Mathar, Jul 16 2009

Links

Table of n, a(n) for n=1..4.

Mathematica

Select[Table[n^n-n!-9, {n, 3, 50}], PrimeQ] (* Harvey P. Dale, Jul 30 2017 *)

Prog

(Magma) [a: n in [3..100] | IsPrime(a) where a is n^n-Factorial(n)-9]; // Vincenzo Librandi, Aug 02 2017

Crossrefs

Cf. A162603.

Sequence in context: A205265 A153165 A094491 * A296896 A050241 A345542

Adjacent sequences: A162601 A162602 A162603 * A162605 A162606 A162607

Keyword

nonn

Author

Vladimir Joseph Stephan Orlovsky, Jul 07 2009

Status

approved