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

2, 23, 387057611, 7596040312163297274222442578036920783684137730466972969164241364503367485389656454146145546668114950475963285686810192201741431

Offset

1,1

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

Links

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

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 *)

Crossrefs

Cf. A162603, A162604

Sequence in context: A358384 A334616 A089987 * A118812 A228241 A054909

Adjacent sequences: A162602 A162603 A162604 * A162606 A162607 A162608

Keyword

nonn

Author

Vladimir Joseph Stephan Orlovsky, Jul 07 2009

Status

approved