OFFSET
1,1
COMMENTS
a(64) > 100000.
The first 12 primes associated with this sequence: 2, 3, 5, 7, 11, 43, 83, 131, 251, 1213, 101063, 9750893.
k = 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 28, 45, 64, 85, 108, 133, 160.
LINKS
Robert Price, Table of n, a(n) for n = 1..63
C. Caldwell and H. Dubner (Eds): The top ten prime numbers: from the unpublished collections of R. Ondrejka (May 2001), Table 21 F, p. 75
Ken Davis, Status of Search for Multifactorial Primes.
MATHEMATICA
MultiFactorial[n_, k_] := If[n < 1, 1, n*MultiFactorial[n - k, k]];
Select[Range[2, 100000], PrimeQ[MultiFactorial[#, 12] - 2] &]
CROSSREFS
KEYWORD
nonn
AUTHOR
Robert Price, Mar 20 2017
STATUS
approved