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A126468
Column 2 of triangle
A126465
.
4
1, 1, 10, 255, 11935, 879571, 93365328, 13464554610, 2531141851260, 601339958510170, 176255315943299736, 62514948119465302825, 26407795709641456484010, 13109371824722841349352160
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OFFSET
0,3
LINKS
Table of n, a(n) for n=0..13.
PROG
(PARI) {a(n)=local(M=matrix(n+3, n+3, r, c, if(r>=c, binomial((r-1)*r*(r+1)/3!-(c-1)*c*(c+1)/3!, r-c))), N=matrix(n+3, n+3, r, c, if(r>=c, binomial((r-1)*r*(r+1)/3!-(c-1)*c*(c+1)/3!+1, r-c)))); (N*M^-1)[n+3, 3]}
CROSSREFS
Cf.
A126465
,
A126466
,
A126467
;
A126469
(row sums).
Sequence in context:
A059166
A100743
A251588
*
A336665
A024293
A361559
Adjacent sequences:
A126465
A126466
A126467
*
A126469
A126470
A126471
KEYWORD
nonn
AUTHOR
Paul D. Hanna
, Dec 27 2006
STATUS
approved
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Last modified March 29 03:51 EDT 2024. Contains 371264 sequences. (Running on oeis4.)