A014171 - OEIS

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A014171

Apply partial sum operator 4 times to binary rooted tree numbers.

0

1, 5, 16, 41, 92, 190, 372, 703, 1298, 2361, 4255, 7628, 13638, 24357, 43496, 77704, 138899, 248450, 444678, 796314, 1426644, 2556825, 4583600, 8218728, 14739136, 26435727, 47418602, 85061737, 152594941

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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)^4 where B(x) is g.f. of A002572.

CROSSREFS

Sequence in context: A258473 A014161 A014166 * A014175 A097810 A187004

Adjacent sequences: A014168 A014169 A014170 * A014172 A014173 A014174

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved