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Search: id:A100647
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| A100647 |
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Numerator of Cotesian number C(n,3). |
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+0
1
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| 1, 16, 25, 34, 2989, 5248, 1209, 5675, 560593, 893128, 11148172711, 109420087, 349259195, 83221185536, 17347403755459, 161769065751, 26070191142124243, 4137435748625, 1745702310941533, 1389851895548897, 936428641553074799449741, 748157499921069376
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OFFSET
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3,2
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REFERENCES
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Charles Jordan, Calculus of Finite Differences, Chelsea 1965, p. 513.
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EXAMPLE
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1/8, 16/45, 25/144, 34/105, 2989/17280, 5248/14175, 1209/5600, 5675/12474, 560593/1935360, 893128/1576575, 11148172711/28740096000, 109420087/156370500, ... = A100627/A100628
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CROSSREFS
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See A002176 for further references. A diagonal of A100640/A100641.
Sequence in context: A111026 A124186 A001033 this_sequence A030666 A030676 A002644
Adjacent sequences: A100644 A100645 A100646 this_sequence A100648 A100649 A100650
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KEYWORD
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nonn,frac
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AUTHOR
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njas, Dec 05 2004
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