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

Author

Wolfdieter Lang

Keywords

• easy
• nonn

Links

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

Programs

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 *)

Formula

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

Extensions

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