id:A000393 - OEIS Search Results

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Number of n-node rooted trees of height 6.
(Formerly M4170 N1736)

+0
1

0, 0, 0, 0, 0, 0, 1, 6, 26, 94, 308, 941, 2744, 7722, 21166, 56809, 149971, 390517, 1005491, 2564164, 6485901, 16289602, 40659669, 100934017, 249343899, 613286048, 1502515487, 3667953650, 8925161513, 21652815724, 52387028291 (list; graph; listen)

	OFFSET	`1,8`
	REFERENCES	`J. Riordan, Enumeration of trees by height and diameter, IBM J. Res. Dev. 4 (1960), 473-478.`
	LINKS	`N. J. A. Sloane, Table of n, a(n) for n=1..200` `Index entries for sequences related to rooted trees` `Index entries for sequences related to trees`
	FORMULA	`A034823-A001385. (Christian G. Bower (bowerc(AT)usa.net)).`
	MAPLE	`For Maple program see link in A000235.`
	CROSSREFS	`Sequence in context: A036631 A036638 A036645 this_sequence A106392 A055589 A055420` `Adjacent sequences: A000390 A000391 A000392 this_sequence A000394 A000395 A000396`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

AT&T Labs Research