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 A275871 Row sums and second diagonal of A046934. 0
 1, 1, 4, 15, 61, 272, 1317, 6865, 38278, 227093, 1426921, 9457918, 65898275, 481177881, 3672102116, 29218285875, 241873478425, 2079079678176, 18524191138689, 170803860905237, 1627465240969382 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS The offset corresponds to the definition of A046934. Differences of A032346 and of A032347. LINKS Table of n, a(n) for n=0..20. MATHEMATICA Clear[d]; d[0] = 1; d[1] = 0; d[n_] := d[n] = 1 + Sum[Binomial[n - 1, j]*d[j], {j, 2, n - 1}]; Table[ d[n + 2] - d[n + 1], {n, 0, 22}] (* From the code by J.-F. Alcover and Jon Perry in A032347 *) CROSSREFS Cf. A046934, A046935, A032346, A032347. Cf. A005493 (first differences of Bell numbers, second diagonal and row sum of A011971). Sequence in context: A285363 A356942 A151484 * A007161 A352815 A007167 Adjacent sequences: A275868 A275869 A275870 * A275872 A275873 A275874 KEYWORD nonn,easy AUTHOR Olivier Gérard, Aug 11 2016 STATUS approved

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Last modified May 30 16:00 EDT 2024. Contains 372968 sequences. (Running on oeis4.)