id:A000299 - OEIS Search Results

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Number of n-node rooted trees of height 4.
(Formerly M3461 N1408)

+0
2

0, 0, 0, 0, 1, 4, 13, 36, 93, 225, 528, 1198, 2666, 5815, 12517, 26587, 55933, 116564, 241151, 495417, 1011950, 2055892, 4157514, 8371318, 16792066, 33564256, 66875221, 132849983, 263192599, 520087551, 1025295487, 2016745784, 3958608430 (list; graph; listen)

	OFFSET	`1,6`
	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	`A001384-A001383. (Christian G. Bower (bowerc(AT)usa.net)).`
	MAPLE	`For Maple program see link in A000235.`
	CROSSREFS	`Sequence in context: A053563 A036636 A036643 this_sequence A102301 A031506 A065297` `Adjacent sequences: A000296 A000297 A000298 this_sequence A000300 A000301 A000302`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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

AT&T Labs Research