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A036721 G.f. satisfies A(x) = 1 + x*cycle_index(Sym(5), A(x)). 3
1, 1, 1, 2, 4, 9, 20, 47, 112, 277, 693, 1766, 4547, 11852, 31146, 82534, 220149, 590834, 1593951, 4320723, 11761394, 32138301, 88121176, 242383729, 668607115, 1849194691, 5126800907, 14245679652, 39666239726, 110661514973, 309280533011 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

COMMENTS

Also the number of rooted trees where each node has at most 5 children. [Patrick Devlin, Apr 30 2012]

LINKS

Table of n, a(n) for n=0..30.

CROSSREFS

Cf. A036717-A036720.

Sequence in context: A095980 A036619 A036620 * A014267 A089405 A091500

Adjacent sequences:  A036718 A036719 A036720 * A036722 A036723 A036724

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified November 23 07:56 EST 2014. Contains 249839 sequences.