

A329167


Numbers k such that k![4]  32 is prime, where k![4] = A007662(k) = quadruple factorial.


0



9, 11, 15, 25, 29, 47, 55, 67, 119, 171, 331, 475, 549, 819, 1151, 1543, 2303, 2749, 3303, 3649, 4065, 4261, 4497, 4873, 9105, 12749, 18677, 20121, 22459, 32489, 35765, 46971, 75843, 79585, 79731
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OFFSET

1,1


COMMENTS

a(36) > 10^5.
The first 4 primes associated with this sequence are: 13, 199, 3433, 5221093.


LINKS



MATHEMATICA

MultiFactorial[n_, k_] := If[n < 1, 1, n*MultiFactorial[n  k, k]];
Select[Range[1000], (x = MultiFactorial[#, 4]  32; x > 0 && PrimeQ[x]) &]


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



