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A119577
(n+n^2+n^3)*(binomial(2*n,n))/2.
0
0, 3, 42, 390, 2940, 19530, 119196, 684684, 3758040, 19909890, 102539580, 516023508, 2547314952, 12371513700, 59252218200, 280374917400, 1312759571760, 6089545431090, 28014942671100, 127932182324100
OFFSET
0,2
MAPLE
[seq ((n+n^2+n^3)*(binomial(2*n, n))/2, n=0..29)];
MATHEMATICA
Table[(n+n^2+n^3) Binomial[2n, n]/2, {n, 0, 20}] (* Harvey P. Dale, May 26 2020 *)
CROSSREFS
Sequence in context: A157537 A322893 A114943 * A051273 A350901 A160873
KEYWORD
easy,nonn
AUTHOR
Zerinvary Lajos, May 31 2006
STATUS
approved