id:A036642 - OEIS Search Results

Search: id:A036642

Displaying 1-1 of 1 results found.

page 1

Number of 6-ary rooted trees with n nodes and height exactly 4.

+0
1

0, 0, 0, 0, 1, 3, 8, 18, 38, 76, 144, 266, 476, 841, 1452, 2482, 4179, 6978, 11515, 18876, 30642, 49435, 79116, 125850, 198771, 312136, 486940, 755359, 1164573, 1785513, 2721539, 4125699, 6218982, 9324110, 13902897, 20620486, 30419728 (list; graph; listen)

	OFFSET	`0,6`
	LINKS	`Index entries for sequences related to rooted trees` `E. M. Rains and N. J. A. Sloane, On Cayley's Enumeration of Alkanes (or 4-Valent Trees), J. Integer Sequences, Vol. 2 (1999), Article 99.1.1.`
	CROSSREFS	`Adjacent sequences: A036639 A036640 A036641 this_sequence A036643 A036644 A036645` `Sequence in context: A036635 A000713 A078409 this_sequence A000235 A006478 A104187`
	KEYWORD	`nonn,fini`
	AUTHOR	`njas`

page 1

Search completed in 0.002 seconds

Last modified May 16 01:24 EDT 2008. Contains 139630 sequences.

AT&T Labs Research