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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..19.

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

Cf. A000984, A027444.

Sequence in context: A157537 A322893 A114943 * A051273 A160873 A084512

Adjacent sequences:  A119574 A119575 A119576 * A119578 A119579 A119580

KEYWORD

easy,nonn

AUTHOR

Zerinvary Lajos, May 31 2006

STATUS

approved

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Last modified July 12 23:28 EDT 2020. Contains 335669 sequences. (Running on oeis4.)