id:A000555 - OEIS Search Results

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Number of labeled trees of diameter 4 with n nodes.
(Formerly M5319 N2312)

+0
1

60, 720, 6090, 47040, 363384, 2913120 (list; graph; listen)

	OFFSET	`5,1`
	REFERENCES	`N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).` `N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).` `J. Riordan, Enumeration of trees by height and diameter, IBM J. Res. Dev. 4 (1960), 473-478.`
	LINKS	`Index entries for sequences related to trees`
	CROSSREFS	`Sequence in context: A099344 A088945 A136008 this_sequence A034865 A138409 A024016` `Adjacent sequences: A000552 A000553 A000554 this_sequence A000556 A000557 A000558`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.