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A126455 Column 0 of triangle A126454; a(n) = C( C(n+2,3) + 2, n). 5
1, 3, 15, 220, 7315, 435897, 40475358, 5373200880, 962889794295, 223581013518060, 65230517839369311, 23345156728397937888, 10052806195411162278095, 5126493560257678027274800 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..13.

MATHEMATICA

Table[Binomial[Binomial[n+2, 3]+2, n], {n, 0, 20}] (* Harvey P. Dale, Dec 08 2018 *)

PROG

(PARI) a(n)=binomial(n*(n+1)*(n+2)/3!+2, n)

CROSSREFS

Cf. A126454, A126456; A126446, A126451, A126458.

Sequence in context: A117820 A126453 A007081 * A136466 A296856 A303290

Adjacent sequences:  A126452 A126453 A126454 * A126456 A126457 A126458

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Dec 27 2006

STATUS

approved

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Last modified August 14 12:15 EDT 2022. Contains 356116 sequences. (Running on oeis4.)