A114252 C(4+2*n,4+n)*C(9+2*n,0+n)

1, 66, 2184, 54600, 1178100, 23279256, 434546112, 7801876368, 136246002750, 2331320491500, 39283977292560, 654191853260400, 10794165578796600, 176805993477330000, 2879098129810080000, 46660583690455363200, 753276797952788769660, 12121801610494996922040

Offset

0,2

Links

Table of n, a(n) for n=0..17.

Mathematica

Table[Binomial[4+2n, 4+n]Binomial[9+2n, n], {n, 0, 20}] (* Harvey P. Dale, Aug 30 2015 *)

Crossrefs

Cf. A062190.

Sequence in context: A271797 A017782 A035728 * A240464 A017729 A230993

Adjacent sequences: A114249 A114250 A114251 * A114253 A114254 A114255

Keyword

easy,nonn

Author

Zerinvary Lajos, Feb 04 2006

Extensions

More terms from Harvey P. Dale, Aug 30 2015

Status

approved