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 A293019 Square array A(n,k), n>=0, k>=0, read by antidiagonals, where A(0,k) = 1 and A(n,k) = - k! * Sum_{i=0..n-1} binomial(n-1,i) * binomial(i+1,k) * A(n-1-i,k) for n > 0. 4
 1, 1, -1, 1, -1, 0, 1, 0, -1, 1, 1, 0, -2, 2, 1, 1, 0, 0, -6, 9, -2, 1, 0, 0, -6, 0, 4, -9, 1, 0, 0, 0, -24, 100, -95, -9, 1, 0, 0, 0, -24, -60, 570, -414, 50, 1, 0, 0, 0, 0, -120, 240, 798, 49, 267, 1, 0, 0, 0, 0, -120, -360, 4830, -15176, 10088, 413, 1, 0, 0 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,13 LINKS Seiichi Manyama, Antidiagonals n = 0..139, flattened EXAMPLE Square array begins:     1,  1,  1,   1,   1, ...    -1, -1,  0,   0,   0, ...     0, -1, -2,   0,   0, ...     1,  2, -6,  -6,   0, ...     1,  9,  0, -24, -24, ... CROSSREFS Columns k=0-4 give: A000587, A292952, A293016, A293017, A293018. Rows n=0 gives A000012. Cf. A292978, A293015. Sequence in context: A274370 A128521 A090477 * A087479 A263343 A326413 Adjacent sequences:  A293016 A293017 A293018 * A293020 A293021 A293022 KEYWORD sign,tabl AUTHOR Seiichi Manyama, Sep 28 2017 STATUS approved

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Last modified December 1 22:24 EST 2020. Contains 338858 sequences. (Running on oeis4.)