id:A034823 - OEIS Search Results

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Number of n-node rooted trees of height at most 6.

+0
5

1, 1, 1, 2, 4, 9, 20, 48, 114, 278, 676, 1653, 4027, 9816, 23843, 57833, 139908, 337856, 814127, 1958524, 4703322, 11278027, 27003707, 64571463, 154207616, 367841733, 876450881, 2086098057, 4960230005, 11782852600, 27963874395, 66307010599 (list; graph; listen)

	OFFSET	`0,4`
	LINKS	`N. J. A. Sloane, Table of n, a(n) for n=0..200` `N. J. A. Sloane, Transforms` `Index entries for sequences related to rooted trees`
	FORMULA	`Take Euler transform of A001385 and shift right. (Christian G. Bower (bowerc(AT)usa.net)).`
	MAPLE	`For Maple program see link in A000235.`
	CROSSREFS	`See A001383 for details.` `Sequence in context: A091500 A052329 A036624 this_sequence A036625 A003019 A036626` `Adjacent sequences: A034820 A034821 A034822 this_sequence A034824 A034825 A034826`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research