A288611 Primes of the form k!6+8, where k!6 is the sextuple factorial number (A085158).

11, 13, 8513, 623653, 894930583, 8549258359016383, 235688987204434958925489124744024850191208400552711361516202496964312102763671883, 3455904336175896542411549854057588080710499447187965811860796717973635798288665212915137252930364990234383

Offset

1,1

Links

Robert Price, Table of n, a(n) for n = 1..10

Henri& Renaud Lifchitz, PRP Records.Search for n!6+8.

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, 6] + 8, {i, 0, 100}], PrimeQ[#]&]

Crossrefs

Cf. A288152.

Sequence in context: A343838 A360388 A096074 * A068837 A246627 A257135

Adjacent sequences: A288608 A288609 A288610 * A288612 A288613 A288614

Keyword

nonn

Author

Robert Price, Jun 11 2017

Status

approved