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
KEYWORD
easy,nonn
AUTHOR
Zerinvary Lajos, May 31 2006
STATUS
approved