id:A048809 - OEIS Search Results

Search: id:A048809

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Number of rooted trees with n nodes with every leaf at height 4.

+0
3

1, 1, 2, 3, 6, 8, 15, 23, 39, 61, 102, 161, 265, 420, 682, 1087, 1753, 2790, 4476, 7120, 11376, 18075, 28785, 45666, 72530, 114882, 182040, 287878, 455231, 718755, 1134491, 1788461, 2818140, 4436000, 6978932, 10969695, 17232572, 27049320 (list; graph; listen)

	OFFSET	`5,3`
	LINKS	`N. J. A. Sloane, Transforms` `Index entries for sequences related to rooted trees`
	FORMULA	`Euler transform of A048808 shifted right.`
	CROSSREFS	`Cf. A048808-A048816.` `Sequence in context: A075723 A138137 A129374 this_sequence A047001 A091070 A133586` `Adjacent sequences: A048806 A048807 A048808 this_sequence A048810 A048811 A048812`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net), Apr 15 1999.`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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