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A289490
Primes of the form k!4+8, where k!4 is the quadruple factorial number (A007662).
1
11, 13, 29, 53, 239, 593, 65843, 1514213, 5221133, 4996616633, 1729986783533, 7579867420133, 36453104912477522894633, 2442358029135994033939883, 173407420068655576409731133, 534602198949923693866675351078133, 7419136758370889359733910587728133
OFFSET
1,1
LINKS
MATHEMATICA
MultiFactorial[n_, k_] := If[n<1, 1, n*MultiFactorial[n-k, k]];
Select[Table[MultiFactorial[i, 4] + 8, {i, 0, 100}], PrimeQ[#]&]
CROSSREFS
Cf. A291343.
Sequence in context: A107645 A106014 A261371 * A056251 A222805 A089755
KEYWORD
nonn
AUTHOR
Robert Price, Sep 02 2017
STATUS
approved