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 A132814 A007318^(-1) * A132813. 2
 1, 0, 2, 0, 2, 3, 0, 0, 9, 4, 0, 0, 6, 24, 5, 0, 0, 0, 40, 50, 6, 0, 0, 0, 20, 150, 90, 7, 0, 0, 0, 0, 175, 420, 147, 8, 0, 0, 0, 0, 70, 840, 980, 224, 9, 0, 0, 0, 0, 0, 756, 2940, 2016, 324, 10, 0, 0, 0, 0, 0, 252, 4410, 8400, 3780, 450, 11 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS Row sums = A005773 starting (1, 2, 5, 13, 35, 96,...). LINKS FORMULA Inverse binomial transform of A132813. EXAMPLE First few rows of the triangle are: 1; 0, 2; 0, 2, 3; 0, 0, 9, 4; 0, 0, 6, 24, 5; 0, 0, 0, 40, 50, 6; 0, 0, 0, 20, 150, 90, 7; ... PROG (PARI) tabl(nn) = {t007318 = matrix(nn, nn, n, k, binomial(n-1, k-1)); t132813 = matrix(nn, nn, n, k, binomial(n-1, k-1)*binomial(n, k-1)); t132814 = t007318^(-1)*t132813; for (n=1, nn, for (k=1, n, print1(t132814[n, k], ", "); ); ); } \\ Michel Marcus, Feb 12 2014 CROSSREFS Cf. A132813, A005773. Sequence in context: A344839 A344836 A323474 * A058623 A209689 A204329 Adjacent sequences:  A132811 A132812 A132813 * A132815 A132816 A132817 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Sep 01 2007 EXTENSIONS More terms from Michel Marcus, Feb 12 2014 STATUS approved

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Last modified June 24 07:56 EDT 2021. Contains 345416 sequences. (Running on oeis4.)