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A072168
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Floor of ratio of volume of n-dimensional cube of side 2 to volume of n-dimensional ball of radius 1.
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1
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1, 1, 1, 1, 3, 6, 12, 27, 63, 155, 401, 1086, 3067, 8995, 27340, 85905, 278484, 929713, 3191200, 11245602, 40631627, 150342632, 569071745, 2201355133, 8694775794, 35035655103, 143916920871, 602218550964, 2565370007348, 11118142868084, 48994958103507
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OFFSET
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0,5
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REFERENCES
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J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 9.
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LINKS
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FORMULA
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2^n*GAMMA(n/2+1)/Pi^(n/2).
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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