id:A036650 - OEIS Search Results

Search: id:A036650

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Number of 5-valent trees with n nodes.

+0
1

0, 1, 1, 1, 2, 3, 6, 10, 21, 42, 94, 204, 473, 1098, 2633, 6353, 15641, 38789, 97416, 246410, 628726, 1614292, 4171955, 10839366, 28308678, 74266477, 195667533, 517504253, 1373640355, 3658205088, 9772510063, 26181295237, 70330621171 (list; graph; listen)

	OFFSET	`0,5`
	LINKS	`E. M. Rains and N. J. A. Sloane, On Cayley's Enumeration of Alkanes (or 4-Valent Trees)., J. Integer Sequences, Vol. 2 (1999), Article 99.1.1.` `Index entries for sequences related to trees`
	CROSSREFS	`Sequence in context: A063687 A002988 A138347 this_sequence A049889 A014270 A127076` `Adjacent sequences: A036647 A036648 A036649 this_sequence A036651 A036652 A036653`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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