id:A050381 - OEIS Search Results

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Number of series-reduced planted trees with n leaves of 2 colors.

+0
2

2, 3, 10, 40, 170, 785, 3770, 18805, 96180, 502381, 2667034, 14351775, 78096654, 429025553, 2376075922, 13252492311, 74372374366, 419651663108, 2379399524742, 13549601275893, 77460249369658, 444389519874841 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`N. J. A. Sloane, Transforms` `Index entries for sequences related to rooted trees`
	FORMULA	`Doubles (index 2+) under EULER transform.`
	CROSSREFS	`Cf. A000669, A001678, A029856, A031148.` `Adjacent sequences: A050378 A050379 A050380 this_sequence A050382 A050383 A050384` `Sequence in context: A003048 A008980 A064183 this_sequence A129716 A032293 A059733`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net), Nov 15 1999.`

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Last modified October 11 13:47 EDT 2008. Contains 144830 sequences.

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