A290123 Primes of the form k! / 10 - 1.

3991679, 622702079, 35568742809599, 30488834461171386050150399999, 579712602074736798587973423157810910541235724473162595874586504971639017969389205625618453424974594047999999999999999999

Offset

1,1

Links

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

Joe McLean, Interesting Sources of Probable Primes

OpenPFGW Project, Primality Tester

Mathematica

Select[Table[k! / 10 - 1, {k, 10, 100}], PrimeQ[#]&]

Crossrefs

Cf. A139205.

Sequence in context: A032753 A047987 A234798 * A146946 A109207 A104930

Adjacent sequences: A290120 A290121 A290122 * A290124 A290125 A290126

Keyword

nonn

Author

Robert Price, Jul 19 2017

Status

approved