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Search: id:A001757
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| A001757 |
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Expansion of an integral: central elements of rows of triangle in A059366.
(Formerly M1941 N0769)
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+0
3
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| 1, 2, 9, 54, 450, 4500, 55125, 771750, 12502350, 225042300, 4538353050, 99843767100, 2410513805700, 62673358948200, 1762688220418125, 52880646612543750, 1698056319002793750, 2393682624966332652
(list; graph; listen)
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OFFSET
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1,2
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REFERENCES
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N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).
L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 167.
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CROSSREFS
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Sequence in context: A127128 A064151 A075679 this_sequence A078455 A036074 A009363
Adjacent sequences: A001754 A001755 A001756 this_sequence A001758 A001759 A001760
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KEYWORD
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nonn,easy
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
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More terms from Larry Reeves (larryr(AT)acm.org), Feb 08 2001
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