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A289727 Primes of the form k!6-6, where k!6 is the sextuple factorial number (A085158). 1
929, 1723, 21499, 1339969, 49579069, 42061737019, 8549258359016369, 815970262367657972299041020065569977629234369, 128107331191722301650949440150294486487789796869, 320745817436192067170665942374782284454205305520925161570651550901795210373583984369 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Robert Price, Table of n, a(n) for n = 1..13

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

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] - 6, {i, 6, 100}], PrimeQ[#]&]

CROSSREFS

Cf. A289685.

Sequence in context: A219526 A249535 A340957 * A290967 A109184 A219066

Adjacent sequences:  A289724 A289725 A289726 * A289728 A289729 A289730

KEYWORD

nonn

AUTHOR

Robert Price, Jul 10 2017

STATUS

approved

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Last modified January 22 23:50 EST 2022. Contains 350504 sequences. (Running on oeis4.)