A161609 Primes of the form k! + k^3 + k^2 + k + 1.

2, 5, 17, 109

Offset

1,1

Comments

The associated k are 0,1,2,4,... (and no further between 4 and 2020, i.e., the next prime has at least 5802 digits).

Links

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

Mathematica

lst={}; Do[p=n!+n^3+n^2+n+1; If[PrimeQ[p], AppendTo[lst, p]], {n, 0, 6!}]; lst

Crossrefs

Sequence in context: A081546 A103511 A254132 * A228238 A174168 A097980

Adjacent sequences: A161606 A161607 A161608 * A161610 A161611 A161612

Keyword

nonn

Author

Vladimir Joseph Stephan Orlovsky, Jun 14 2009

Status

approved