A288613 Primes of the form k!6+16, where k!6 is the sextuple factorial number (A085158).

17, 19, 23, 43, 71, 107, 421, 8521, 21521, 21827591, 49579091, 295540261, 42061737041, 104463111041, 131527051677191, 9531467484069295223586105103141, 1115181695636107541159574297065641, 20881494984250735169104758744498001297509736890641

Offset

1,1

Links

Robert Price, Table of n, a(n) for n = 1..20

Henri& Renaud Lifchitz, PRP Records.Search for n!6+16.

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] + 16, {i, 0, 100}], PrimeQ[#]&]
Select[Table[Times@@Range[n, 1, -6]+16, {n, 200}], PrimeQ] (* Harvey P. Dale, Sep 26 2023 *)

Crossrefs

Cf. A288444.

Sequence in context: A102325 A231326 A038711 * A154881 A226684 A334287

Adjacent sequences: A288610 A288611 A288612 * A288614 A288615 A288616

Keyword

nonn

Author

Robert Price, Jun 11 2017

Status

approved