A014169 Apply partial sum operator thrice to binary rooted tree numbers.

1, 4, 11, 25, 51, 98, 182, 331, 595, 1063, 1894, 3373, 6010, 10719, 19139, 34208, 61195, 109551, 196228, 351636, 630330, 1130181, 2026775, 3635128, 6520408, 11696591, 20982875, 37643135, 67533204

Offset: 1

Author

N. J. A. Sloane

Keywords

• nonn

Links

• Index entries for sequences related to rooted trees

Crossrefs

Cf. A002572.

Formula

G.f.: (B(x)-x)/x(1-x)^3 where B(x) is g.f. of A002572.