A119552 Binomial(binomial(2*n,n)*n,n).

1, 2, 66, 34220, 250654530, 26255517781752, 40219012695854521452, 915602638690858051785326904, 313119156483427472599890586326722370, 1620758891081732168210880572699959520551984700

Offset: 0

Author

Zerinvary Lajos, May 30 2006

Keywords

• easy
• nonn

Crossrefs

Cf. A005430.

Programs

Maple

[seq (binomial(binomial(2*n,n)*n,n),n=0..10)];