1,1
Robert Price, Table of n, a(n) for n = 1..14
Henri & Renaud Lifchitz, PRP Records.Search for n!3-19683.
Joe McLean, Interesting Sources of Probable Primes
OpenPFGW Project, Primality Tester
MultiFactorial[n_, k_] := If[n<1, 1, n*MultiFactorial[n-k, k]];
Select[Table[MultiFactorial[i, 3] - 19683, {i, 15, 100}], PrimeQ[#]&]
Select[Table[Times@@Range[n, 1, -3]-19683, {n, 15, 100}], PrimeQ] (* Harvey P. Dale, Dec 14 2019 *)
Cf. A267029.
Sequence in context: A050766 A250712 A330427 * A321494 A252103 A074484
Adjacent sequences: A289821 A289822 A289823 * A289825 A289826 A289827
nonn
Robert Price, Jul 12 2017
approved
