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A126464 Row sums of triangle A126460. 4
1, 2, 3, 8, 50, 635, 13389, 420865, 18491156, 1084804118, 82081329459, 7794746829520, 908790397019076, 127745867968533747, 21322592031518420776, 4171751138526111626665, 946103460280012610769060 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..16.

PROG

(PARI) {a(n)=sum(k=0, n, abs((matrix(n+1, n+1, r, c, binomial((c-1)*c*(c+1)/3!-k*(k+1)*(k+2)/3!+r-c, r-c))^-1)[n+1, k+1]))}

CROSSREFS

Cf. A126460; A126461, A126462, A126463.

Sequence in context: A141319 A001289 A103045 * A041979 A001686 A013205

Adjacent sequences:  A126461 A126462 A126463 * A126465 A126466 A126467

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Dec 27 2006

STATUS

approved

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Last modified June 14 04:16 EDT 2021. Contains 345018 sequences. (Running on oeis4.)