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A126449 Row sums of triangle A126445; a(n) = Sum_{k=0..n} C( C(n+2,3) - C(k+2,3), n-k). 4
1, 2, 10, 163, 5945, 375819, 36233754, 4932046435, 899372990826, 211481102358562, 62283285977509563, 22451501854089680715, 9722649026348549481236, 4980474318644453218716459 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
PROG
(PARI) a(n)=sum(k=0, n, binomial(binomial(n+2, 3)-binomial(k+2, 3), n-k))
CROSSREFS
Sequence in context: A197313 A294352 A007131 * A328812 A126451 A260122
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Dec 27 2006
STATUS
approved

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Last modified July 23 07:31 EDT 2024. Contains 374546 sequences. (Running on oeis4.)