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A288412 Primes of the form k!2+512, where k!2 is the double factorial number (A006852). 1
617, 135647, 2027537, 654729587, 7905853581137, 370285001030422820361936176659518850400275455268246313217966819668512968338481634393678502844088430422210693359887 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Robert Price, Table of n, a(n) for n = 1..8

Henri& Renaud Lifchitz, PRP Records.Search for n!2+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, 2] + 512, {i, 0, 100}], PrimeQ[#]&]

CROSSREFS

Cf. A076196.

Sequence in context: A275048 A275739 A108818 * A234559 A251323 A020377

Adjacent sequences:  A288409 A288410 A288411 * A288413 A288414 A288415

KEYWORD

nonn

AUTHOR

Robert Price, Jun 08 2017

STATUS

approved

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Last modified May 31 16:29 EDT 2020. Contains 334748 sequences. (Running on oeis4.)