OFFSET
1,1
LINKS
Robert Price, Table of n, a(n) for n = 1..18
Henri& Renaud Lifchitz, PRP Records.Search for n!3+3^9.
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, 3] + 3^9, {i, 0, 100}], PrimeQ[#]&]
Select[Table[Times@@Range[n, 1, -3]+19683, {n, 100}], PrimeQ] (* Harvey P. Dale, Sep 18 2023 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Robert Price, Jun 18 2017
STATUS
approved