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Search: id:A079282
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| 1, 3, 9, 24, 61, 149, 354, 823, 1881, 4240, 9449, 20857, 45666, 99291, 214589, 461336, 987221, 2103917, 4467394, 9454895, 19951601, 41989408, 88155409, 184670769, 386072386, 805624179, 1678235829, 3490492968, 7249103581, 15034563845
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OFFSET
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0,2
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FORMULA
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a(n)=sum(sum((k+1)binomial(n-j, n-2j-k), k, 0, n-2j), j, 0, floor(n/2))
(n-1)2^n + F(n+3), with F(n) = A000045(n). - R. Stephan, May 09 2004
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CROSSREFS
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Cf. A055249.
Sequence in context: A034330 A084858 A003262 this_sequence A117585 A006684 A018788
Adjacent sequences: A079279 A079280 A079281 this_sequence A079283 A079284 A079285
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KEYWORD
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easy,nonn
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AUTHOR
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Paul Barry (pbarry(AT)wit.ie), Feb 08 2003
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