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A288616 Primes of the form k!6+27, where k!6 is the sextuple factorial number (A085158). 1
29, 31, 43, 67, 251, 4507, 14107, 116507, 3727387, 536166427, 3863281304394304907431116800027, 448140631309739369262009548800027, 749208909436911824731413869422968832000027, 110882918596662950060249252674599387136000027 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Robert Price, Table of n, a(n) for n = 1..16

Henri& Renaud Lifchitz, PRP Records.Search for n!6+27.

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, 6] + 27, {i, 0, 100}], PrimeQ[#]&]

CROSSREFS

Cf. A288447.

Sequence in context: A178456 A069453 A104071 * A273547 A132240 A132243

Adjacent sequences:  A288613 A288614 A288615 * A288617 A288618 A288619

KEYWORD

nonn

AUTHOR

Robert Price, Jun 11 2017

STATUS

approved

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Last modified November 27 20:49 EST 2021. Contains 349395 sequences. (Running on oeis4.)