A049028 Row sums of triangle A035529.

1, 7, 55, 454, 3850, 33202, 289606, 2546773, 22532905, 200301403, 1787165647, 15993710992, 143484404584, 1289890360528, 11615931435592, 104760483639286, 946005479787778, 8552032916587066, 77386316886280822, 700854120680500744

Offset

1,2

Links

Table of n, a(n) for n=1..20.

Wolfdieter Lang, On generalizations of Stirling number triangles, J. Integer Seqs., Vol. 3 (2000), #00.2.4.

Formula

G.f.: (1-(1-9*x)^(1/3))/(4*(1-9*x)^(1/3)-1).

Mathematica

Rest[CoefficientList[Series[(1-(1-9*x)^(1/3))/(4*(1-9*x)^(1/3)-1), {x, 0, 20}], x]] (* Georg Fischer, Apr 11 2020 *)

Crossrefs

Sequence in context: A083068 A362299 A097189 * A224274 A096951 A113714

Adjacent sequences: A049025 A049026 A049027 * A049029 A049030 A049031

Keyword

easy,nonn

Author

Wolfdieter Lang

Extensions

a(10) corrected by Georg Fischer, Apr 11 2020

Status

approved