A290188 Primes of the form k!*3^k + 1.

2, 19, 163, 264539521, 9927882482918401, 141383412854531380076544001

Offset

1,1

Links

Table of n, a(n) for n=1..6.

Joe McLean, Interesting Sources of Probable Primes

OpenPFGW Project, Primality Tester

Mathematica

Select[Table[k!*3^k + 1, {k, 0, 100}], PrimeQ[#]&]

Crossrefs

Cf. A236169.

Sequence in context: A198312 A057858 A065898 * A083196 A037526 A037735

Adjacent sequences: A290185 A290186 A290187 * A290189 A290190 A290191

Keyword

nonn

Author

Robert Price, Jul 23 2017

Status

approved