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A306525 Row sums of A306234. 2
0, 1, 3, 12, 53, 282, 1753, 12566, 102233, 931746, 9408941, 104310042, 1259745925, 16464164978, 231539899697, 3486551697582, 55972130401073, 954322312212546, 17222351842894933, 327979242711784226, 6573122342554664381, 138292026914011788882 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Alois P. Heinz, Table of n, a(n) for n = 0..450

MAPLE

a:= proc(n) option remember; `if`(n<5, [0, 1, 3, 12, 53][n+1],

      (2*(2*n^2-9*n+6)*a(n-1)  -(2*n^3-13*n^2+21*n-8)*a(n-2)

      -(4*n^2-21*n+30)*a(n-3) +(2*n^3-19*n^2+63*n-71)*a(n-4)

        -(2*n-5)*(n-4)*a(n-5)) / (2*n-7))

    end:

seq(a(n), n=0..23);

CROSSREFS

Row sums of A306234.

Sequence in context: A307412 A302188 A060460 * A293131 A120983 A124810

Adjacent sequences:  A306522 A306523 A306524 * A306526 A306527 A306528

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Feb 21 2019

STATUS

approved

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Last modified December 13 12:44 EST 2019. Contains 329968 sequences. (Running on oeis4.)