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A126446
Column 0 of triangle A126445; a(n) = binomial( binomial(n+2,3), n).
8
1, 1, 6, 120, 4845, 324632, 32468436, 4529365776, 840261910995, 200063149171380, 59473554359599446, 21592914273609648996, 9403538945961296957821, 4838670732821812768919800, 2904538537066424425438417800
OFFSET
0,3
LINKS
MATHEMATICA
Table[Binomial[n (n + 1) (n + 2) / 3!, n], {n, 0, 20}] (* Vincenzo Librandi, Mar 04 2018 *)
PROG
(PARI) a(n)=binomial(n*(n+1)*(n+2)/3!, n)
(Sage) [(binomial(binomial(n+3, n), n+1)) for n in range(-1, 12)] # Zerinvary Lajos, Nov 30 2009
(Magma) [(Binomial(Binomial(n+3, n), n+1)): n in [-1..20]]; // Vincenzo Librandi, Mar 04 2018
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Dec 27 2006
STATUS
approved