id:A108522 - OEIS Search Results

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Number of increasing rooted trees with n generators.

+0
3

1, 2, 9, 70, 771, 10948, 190205, 3907494, 92654059, 2490459468, 74827519077, 2485153213814, 90403692195179, 3574835773247140, 152675377606343901, 7003761877546096278, 343454890456254782203, 17929588055863943650988 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`A generator is a leaf or a node with just one child.` `In an increasing rooted tree, nodes are numbered and numbers increase as you move away from root.`
	LINKS	`Index entries for sequences related to rooted trees`
	FORMULA	`E.g.f. satisfies 2*A(x) = x - 1 + A'(x) + exp(A(x))`
	CROSSREFS	`Cf. A108521-A108529, A007151, A001147.` `Sequence in context: A006849 A121417 A167016 this_sequence A014500 A101482 A099717` `Adjacent sequences: A108519 A108520 A108521 this_sequence A108523 A108524 A108525`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net), Jun 07 2005`

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.

AT&T Labs Research