A162605 Primes of the form k^k-k!+2.

2, 23, 387057611, 7596040312163297274222442578036920783684137730466972969164241364503367485389656454146145546668114950475963285686810192201741431

Offset: 1

Author

Vladimir Joseph Stephan Orlovsky, Jul 07 2009

Keywords

• nonn

Comments

The values of A036679(k)+2 at indices k=1, 3, 9, 69, ... - R. J. Mathar, Jul 16 2009

No further terms up to k=1000. - Harvey P. Dale, Apr 26 2022

Crossrefs

Cf. A162603, A162604

Programs

Mathematica

f[n_]:=n^n-n!+2; lst={};Do[p=f[n];If[PrimeQ[p],AppendTo[lst,p]],{n,4*5!}]; lst
Select[Table[k^k-k!+2,{k,100}],PrimeQ] (* Harvey P. Dale, Apr 26 2022 *)