A289733 Primes of the form k!6-24, where k!6 is the sextuple factorial number (A085158).
3, 31, 67, 911, 21481, 43201, 623621, 1339951, 49579051, 2131900201, 2229272062301, 8549258359016351, 606997343490162601, 46738795448742522101, 135419196954588922351, 131181879631714694053764558690601, 4766501963120985802465188343530601
Offset: 1
Keywords
Links
- Robert Price, Table of n, a(n) for n = 1..19
- Henri & Renaud Lifchitz, PRP Records.Search for n!6-24.
- Joe McLean, Interesting Sources of Probable Primes
- OpenPFGW Project, Primality Tester
Crossrefs
Cf. A289697.
Programs
-
Mathematica
MultiFactorial[n_, k_] := If[n<1, 1, n*MultiFactorial[n-k, k]]; Select[Table[MultiFactorial[i, 6] - 24, {i, 9, 100}], PrimeQ[#]&]