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A327870 Row sums of A327869. 3
1, 2, 2, 11, 14, 47, 305, 611, 2070, 8831, 84077, 204371, 944333, 3850407, 23991739, 297448526, 927586630, 4775902567, 24534836837, 141681919871, 1080484165089, 18553632475991, 66762080435239, 415657332495526, 2298883231736949, 15799818116227747 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..500

MAPLE

b:= proc(n, i, k) option remember; `if`(i*(i+1)/2<n, 0,

     `if`(n=0, 1, `if`(i<2, 0, b(n, i-1, `if`(i=k, 0, k)))+

     `if`(i=k, 0, b(n-i, min(n-i, i-1), k)*binomial(n, i))))

    end:

a:= n-> b(n$2, 0)*(n+1) -add(b(n$2, k), k=1..n):

seq(a(n), n=0..28);

CROSSREFS

Row sums of A327869.

Cf. A320566.

Sequence in context: A279197 A121871 A194638 * A235606 A175202 A187430

Adjacent sequences:  A327867 A327868 A327869 * A327871 A327872 A327873

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Sep 28 2019

STATUS

approved

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Last modified December 5 22:37 EST 2019. Contains 329782 sequences. (Running on oeis4.)