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A144520 A000055(n) - 1. 1
0, 0, 0, 0, 1, 2, 5, 10, 22, 46, 105, 234, 550, 1300, 3158, 7740, 19319, 48628, 123866, 317954, 823064, 2144504, 5623755, 14828073, 39299896, 104636889, 279793449, 751065459, 2023443031, 5469566584, 14830871801, 40330829029, 109972410220 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,6

LINKS

Table of n, a(n) for n=0..32.

R. Neville, Graphs whose vertices are forests with bounded degree, Graph Theory Notes of New York, LIV (2008), 12-21.

CROSSREFS

Sequence in context: A100938 A018004 A124329 * A101399 A018109 A123491

Adjacent sequences:  A144517 A144518 A144519 * A144521 A144522 A144523

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Dec 20 2008

STATUS

approved

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Last modified December 20 12:05 EST 2014. Contains 252241 sequences.