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A289564 Primes of the form k!4+512, where k!4 is the quadruple factorial number (A007662). 1
557, 743, 1097, 10457, 66347, 209357, 151413137, 1267390097, 4996617137, 44358635987, 2442358029135994033940387, 654019644904558303836431802744185605453637, 7767791322531438974665300521192692435966766137 (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!4+512.

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, 4] + 512, {i, 0, 100}], PrimeQ[#]&]

CROSSREFS

Cf. A291350.

Sequence in context: A233728 A233355 A177331 * A319061 A339533 A344828

Adjacent sequences:  A289561 A289562 A289563 * A289565 A289566 A289567

KEYWORD

nonn

AUTHOR

Robert Price, Sep 02 2017

STATUS

approved

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Last modified October 27 11:22 EDT 2021. Contains 348274 sequences. (Running on oeis4.)