id:A055364 - OEIS Search Results

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Number of asymmetric mobiles (circular rooted trees) with n nodes and 3 leaves.

+0
2

1, 4, 10, 22, 42, 73, 119, 184, 272, 389, 540, 731, 969, 1261, 1614, 2037, 2538, 3126, 3811, 4603, 5512, 6550, 7728, 9058, 10553, 12226, 14090, 16160, 18450, 20975, 23751, 26794, 30120, 33747, 37692, 41973, 46609, 51619, 57022, 62839, 69090 (list; graph; listen)

	OFFSET	`5,2`
	LINKS	`Index entries for sequences related to mobiles`
	FORMULA	`G.f.: x^5(x^3+x+1)/[(1-x^2)(1-x^3)(1-x)^3].`
	CROSSREFS	`Column 3 of A055363.` `Sequence in context: A008248 A061777 A023609 this_sequence A032191 A065568 A007825` `Adjacent sequences: A055361 A055362 A055363 this_sequence A055365 A055366 A055367`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net), May 16 2000`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research