A063508 - OEIS

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A063508

Numbers n such that !n + 2n - 1 is prime.

1, 2, 4, 5, 7, 13, 40, 124, 758, 940 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	MATHEMATICA	`Do[ If[ PrimeQ[ Sum[ k!, {k, 0, n - 1} ] + 2n - 1 ], Print[ n ] ], {n, 1, 883} ]`
	CROSSREFS	`Cf. A063106.` `Sequence in context: A168540 A115008 A115883 * A101724 A123210 A019277` `Adjacent sequences: A063505 A063506 A063507 * A063509 A063510 A063511`
	KEYWORD	`nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 09 2001`

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Last modified February 16 09:00 EST 2012. Contains 205904 sequences.