id:A069985 - OEIS Search Results

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Numerator of b(n)=binomial(2n,n)^3*(42n+5)/2^(12n+4).

+0
2

5, 47, 2403, 16375, 7417375, 53760105, 3167882487, 23607123111, 90865711740375, 687802362944125, 41879801005939325, 320193409525211313, 157265345845813485371, 1210756529837794953125, 74775114531441956109375 (list; graph; listen)

	OFFSET	`0,1`
	FORMULA	`sum(n>=1, b(n))=1/Pi (Ramanujan)`
	CROSSREFS	`Cf. A069986.` `Sequence in context: A145564 A159480 A093612 this_sequence A086776 A116431 A048435` `Adjacent sequences: A069982 A069983 A069984 this_sequence A069986 A069987 A069988`
	KEYWORD	`easy,frac,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), May 01 2002`

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Last modified December 16 13:01 EST 2009. Contains 170825 sequences.

AT&T Labs Research