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

1,2

Links

Table of n, a(n) for n=1..29.

Index entries for sequences related to rooted trees

Formula

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

Crossrefs

Cf. A002572.

Sequence in context: A136395 A014160 A014162 * A113684 A356619 A014173

Adjacent sequences: A014166 A014167 A014168 * A014170 A014171 A014172

Keyword

nonn

Author

N. J. A. Sloane.

Status

approved