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Search: id:A140063
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| A140063 |
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Binomial transform of [1, 3, 7, 0, 0, 0,...]. |
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+0
1
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| 1, 4, 14, 31, 55, 86, 124, 169, 221, 280, 346, 419, 499, 586, 680, 781, 889, 1004, 1126, 1255, 1391, 1534, 1684, 1841, 2005, 2176, 2354, 2539, 2731, 2930, 3136, 3349, 3569, 3796, 4030, 4271, 4519, 4774, 5036
(list; graph; listen)
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OFFSET
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1,2
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FORMULA
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A007318 * [1, 3, 7, 0, 0, 0,...].
O.g.f.: x*(1+x+5x^2)/(1-x)^3. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 06 2008
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EXAMPLE
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a(4) = 31 = (1, 3, 3, 1) dot (1, 3, 7, 0) = (1 + 9 + 21 + 0).
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CROSSREFS
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Sequence in context: A049451 A079776 A117109 this_sequence A051409 A072475 A001740
Adjacent sequences: A140060 A140061 A140062 this_sequence A140064 A140065 A140066
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KEYWORD
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nonn
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), May 03 2008
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EXTENSIONS
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More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 06 2008
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