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A119549
Binomial( Catalan(n), 4).
1
0, 0, 0, 5, 1001, 111930, 12082785, 1391641251, 173503885555, 23254794293445, 3314798008593435, 497553828530038280, 78006319950663676495, 12691316771806311085525, 2131666305090876552710790
OFFSET
0,4
LINKS
FORMULA
binomial(binomial(2*n,n)/(n+1),4)
MAPLE
[seq (binomial(binomial(2*n, n)/(n+1), 4), n=0..24)];
MATHEMATICA
Binomial[CatalanNumber[Range[0, 20]], 4] (* Harvey P. Dale, Nov 05 2011 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Zerinvary Lajos, May 29 2006
STATUS
approved