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A119581
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(2*n+n^2)*(binomial(2*n,n))/2 n=0 to infinity.
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0
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0, 3, 24, 150, 840, 4410, 22176, 108108, 514800, 2406690, 11085360, 50438388, 227149104, 1014058500, 4493059200, 19777483800, 86555576160, 376877404530, 1633524354000, 7051380128100, 30326236340400, 129989276677260
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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MAPLE
| [seq ((2*n+n^2)*(binomial(2*n, n))/2, n=0..29)];
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MATHEMATICA
| Table[(2n+n^2)Binomial[2*n, n]/2, {n, 0, 25}] (* From Harvey P. Dale, Feb 20 2011 *)
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CROSSREFS
| Cf. A000984.
Sequence in context: A125651 A043017 A003443 * A006292 A067370 A094432
Adjacent sequences: A119578 A119579 A119580 * A119582 A119583 A119584
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KEYWORD
| easy,nonn
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AUTHOR
| Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), May 31 2006
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