A180629 - OEIS

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A180629

Numbers n such that 8*n!-1 is a prime.

0, 1, 3, 4, 8, 33, 121, 177, 190, 276, 473, 484, 924, 937, 1722, 2626, 4077, 4464 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,3`
	COMMENTS	`Tested to 4700. [From Robert G. Wilson v, Sep 27 2010]`
	LINKS	`Table of n, a(n) for n=1..18.` `Index entries for sequences related to numbers of primes of the form k*n!+-1`
	MATHEMATICA	`fQ[n_] := PrimeQ[8 n! - 1]; k = 0; lst = {}; While[k < 1501, If[ fQ@k, AppendTo[lst, k]; Print@k]; k++ ]; lst`
	CROSSREFS	`Sequence in context: A168382 A155701 A119529 * A096847 A011993 A180169` `Adjacent sequences: A180626 A180627 A180628 * A180630 A180631 A180632`
	KEYWORD	`nonn`
	AUTHOR	`Robert G. Wilson v, Sep 13 2010`
	EXTENSIONS	`a(15)-a(18) from Robert G. Wilson v, Sep 27 2010`
	STATUS	`approved`

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Last modified May 24 19:33 EDT 2013. Contains 225630 sequences.