id:A014171 - OEIS Search Results

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Apply partial sum operator 4 times to binary rooted tree numbers.

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1, 5, 16, 41, 92, 190, 372, 703, 1298, 2361, 4255, 7628, 13638, 24357, 43496, 77704, 138899, 248450, 444678, 796314, 1426644, 2556825, 4583600, 8218728, 14739136, 26435727, 47418602, 85061737, 152594941 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Index entries for sequences related to rooted trees`
	FORMULA	`G.f.: (B(x)-x)/x(1-x)^4 where B(x) is g.f. of A002572.`
	CROSSREFS	`Cf. A002572.` `Sequence in context: A078449 A014161 A014166 this_sequence A014175 A097810 A055796` `Adjacent sequences: A014168 A014169 A014170 this_sequence A014172 A014173 A014174`
	KEYWORD	`nonn`
	AUTHOR	`njas`

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

AT&T Labs Research