A112862 - OEIS

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A112862

Primes of the form (2*n)!/(2*(n!)^2)-1.

2, 461, 92377, 269128937219, 51913710643776705684835559, 3017467217880703353213932318284163999 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`The next term (2306)!/(2(306!)^2)-1 has 183 decimal digits.`
	CROSSREFS	`Cf. A001700(n-1)=(2n)!/(2(n!)^2), A112861 gives n such that (2n)!/(2(n!)^2)-1 is prime, A112864 gives primes of the form (2n)!/(2(n!)^2)+1.` `Sequence in context: A012734 A099686 A066152 * A094484 A062620 A108973` `Adjacent sequences: A112859 A112860 A112861 * A112863 A112864 A112865`
	KEYWORD	`nonn`
	AUTHOR	`Hugo Pfoertner (hugo(AT)pfoertner.org), Sep 30 2005`

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Last modified February 15 17:13 EST 2012. Contains 205828 sequences.