A119576 (n+n^2+n^3)*(binomial(2*n,n)).

0, 6, 84, 780, 5880, 39060, 238392, 1369368, 7516080, 39819780, 205079160, 1032047016, 5094629904, 24743027400, 118504436400, 560749834800, 2625519143520, 12179090862180, 56029885342200, 255864364648200

Offset

0,2

Links

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

Maple

[seq ((n+n^2+n^3)*(binomial(2*n, n)), n=0..25)];

Crossrefs

Cf. A000984, A027444.

Sequence in context: A211171 A338405 A054605 * A371471 A098982 A229455

Adjacent sequences: A119573 A119574 A119575 * A119577 A119578 A119579

Keyword

easy,nonn

Author

Zerinvary Lajos, May 31 2006

Status

approved