id:A055357 - OEIS Search Results

Search: id:A055357

Displaying 1-1 of 1 results found.

page 1

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

+0
2

2, 18, 98, 424, 1614, 5682, 19022, 61584, 194882, 607042, 1870122, 5716680, 17379206, 52628898, 158934998, 479032912, 1441816986, 4335412050, 13027207250, 39125661480, 117469258622, 352600713298, 1058204792478 (list; graph; listen)

	OFFSET	`4,1`
	LINKS	`Index entries for sequences related to mobiles`
	FORMULA	`G.f.: x^4(-2x^2-2*x+2)/[(1-3x)(1-2x)^2(1-x)^3].`
	CROSSREFS	`Column 3 of A055356.` `Sequence in context: A052633 A052638 A127553 this_sequence A087291 A005969 A094251` `Adjacent sequences: A055354 A055355 A055356 this_sequence A055358 A055359 A055360`
	KEYWORD	`nonn`
	AUTHOR	`Christian G. Bower (bowerc(AT)usa.net), May 15 2000`

page 1

Search completed in 0.002 seconds

Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

AT&T Labs Research