

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
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OFFSET

0,3


COMMENTS

The offset corresponds to the definition of A046934.


LINKS



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. A005493 (first differences of Bell numbers, second diagonal and row sum of A011971).


KEYWORD

nonn,easy


AUTHOR



STATUS

approved



