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Search: id:A100621
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| A100621 |
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Denominator of Cotesian number C(n,0). |
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+0
9
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| 1, 2, 6, 8, 90, 288, 840, 17280, 28350, 89600, 598752, 17418240, 63063000, 402361344000, 5003856000, 295206912, 976924698750, 342372925440000, 15209113920000, 5377993912811520000, 96852084769440, 89903156428800000, 37556196837868800000, 73570956727261593600000
(list; graph; listen)
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OFFSET
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0,2
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REFERENCES
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Charles Jordan, Calculus of Finite Differences, Chelsea 1965, p. 513.
See A002176 for further references.
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EXAMPLE
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0, 1/2, 1/6, 1/8, 7/90, 19/288, 41/840, 751/17280, 989/28350, 2857/89600, 16067/598752, 434293/17418240, 1364651/63063000, 8181904909/402361344000, ... = A100620/A100621 = A002177/A002176 (the latter is not in lowest terms)
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CROSSREFS
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Sequence in context: A102381 A075998 A007849 this_sequence A002176 A124675 A120709
Adjacent sequences: A100618 A100619 A100620 this_sequence A100622 A100623 A100624
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KEYWORD
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nonn,frac
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Dec 04 2004
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