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A289731 Primes of the form k!6-16, where k!6 is the sextuple factorial number (A085158). 1
11, 389, 919, 8549258359016359, 17694587964658118355578965371540271859, 2388769375228845978003160325157936703109, 8683819409894057159419555626890338258005375505954181180185677734359, 17716286327840198014156487199443278977889267100996146923525170288701171859 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
Henri & Renaud Lifchitz, PRP Records.Search for n!6-16.
OpenPFGW Project, Primality Tester
MATHEMATICA
MultiFactorial[n_, k_] := If[n<1, 1, n*MultiFactorial[n-k, k]];
Select[Table[MultiFactorial[i, 6] - 16, {i, 8, 100}], PrimeQ[#]&]
CROSSREFS
Cf. A289689.
Sequence in context: A048431 A286914 A354513 * A160391 A055409 A067406
KEYWORD
nonn
AUTHOR
Robert Price, Jul 10 2017
STATUS
approved

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)