OFFSET
1,1
COMMENTS
The next term is too large to display.
The next term (a(8)) has 113 digits. - Harvey P. Dale, Dec 09 2020
LINKS
Robert Price, Table of n, a(n) for n = 1..10
Henri & Renaud Lifchitz, PRP Records.Search for n!6-4.
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] - 4, {i, 4, 100}], PrimeQ[#]&]
Select[Table[Times@@Range[n, 1, -6]-4, {n, 3, 100}], PrimeQ] (* Harvey P. Dale, Dec 09 2020 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Robert Price, Jul 07 2017
STATUS
approved