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 A265435 Riordan array (1, x*f(x)) where f(x) is the g.f. of A007564. 1
 1, 0, 1, 0, 1, 1, 0, 4, 2, 1, 0, 19, 9, 3, 1, 0, 100, 46, 15, 4, 1, 0, 562, 254, 82, 22, 5, 1, 0, 3304, 1476, 474, 128, 30, 6, 1, 0, 20071, 8893, 2847, 773, 185, 39, 7, 1, 0, 124996, 55046, 17587, 4796, 1165, 254, 49, 8, 1, 0, 793774, 347922, 111006, 30378, 7461, 1665, 336, 60, 9, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,8 COMMENTS Triangle T(n,k), 0<=k<=n, read by rows, given by (0, 1, 3, 1, 3, 1, 3, 1, 3, ...) DELTA (1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, ...) where DELTA is the operator defined in A084938. LINKS Alois P. Heinz, Rows n = 0..140, flattened EXAMPLE Triangle begins:   1   0,   1   0,   1,  1   0,   4,  2,  1   0,  19,  9,  3, 1   0, 100, 46, 15, 4, 1 Production matrix begins:   0,  1   0,  1,  1   0,  3,  1, 1   0,  9,  3, 1, 1   0, 27,  9, 3, 1, 1   0, 81, 27, 9, 3, 1, 1 CROSSREFS Cf. A007564, A108524 (row sums). Sequence in context: A248721 A110324 A266861 * A277004 A113092 A033324 Adjacent sequences:  A265432 A265433 A265434 * A265436 A265437 A265438 KEYWORD nonn,tabl AUTHOR Philippe Deléham, Dec 09 2015 STATUS approved

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Last modified January 19 08:54 EST 2021. Contains 340267 sequences. (Running on oeis4.)