id:A057649 - OEIS Search Results

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Nearest integer to ratio of volume of n-dimensional cube of side 2 to volume of n-dimensional ball of radius 1.

+0
2

1, 1, 1, 2, 3, 6, 12, 27, 63, 155, 402, 1087, 3068, 8996, 27340, 85905, 278485, 929713, 3191201, 11245603, 40631628, 150342633, 569071745, 2201355134, 8694775795, 35035655103, 143916920872, 602218550964, 2565370007349, 11118142868084, 48994958103507 (list; graph; listen)

	OFFSET	`0,4`
	REFERENCES	`J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 9.`
	FORMULA	`2^n*GAMMA(n/2+1)/Pi^(n/2).`
	CROSSREFS	`Cf. A072168, A072345, A072346.` `Sequence in context: A108915 A082395 A061343 this_sequence A104872 A006082 A122889` `Adjacent sequences: A057646 A057647 A057648 this_sequence A057650 A057651 A057652`
	KEYWORD	`nonn`
	AUTHOR	`njas, Sep 06 2003`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

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