A289863 Primes of the form k!14-2, where k!14 is the 14-way factorial number.

2, 3, 5, 7, 11, 13, 349, 433, 1579, 10723, 14389, 71143, 4197553, 8988043, 674103373, 4532949133, 26658671803, 19959489066463, 3929055890920873, 129745350297287814373, 2183614737794499920623, 699091024202419984779180307753123

Offset

1,1

Links

Robert Price, Table of n, a(n) for n = 1..36

Henri & Renaud Lifchitz, PRP Records.Search for n!14-2.

Joe McLean, Interesting Sources of Probable Primes

OpenPFGW Project, Primality Tester

Mathematica

MultiFactorial[n_, k_] := If[n<1, 1, n*MultiFactorial[n-k, k]];
Select[Table[MultiFactorial[i, 14] - 2, {i, 3, 100}], PrimeQ[#]&]

Crossrefs

Cf. A284190.

Sequence in context: A029981 A029982 A292238 * A260904 A245808 A252797

Adjacent sequences: A289860 A289861 A289862 * A289864 A289865 A289866

Keyword

nonn

Author

Robert Price, Jul 13 2017

Status

approved