A124345 Number of mobiles (circular rooted trees) on n nodes with thinning limbs.

1, 1, 2, 3, 6, 10, 24, 47, 113, 258, 624, 1492, 3694, 9090, 22753, 57111, 144541, 367243, 938449, 2406720, 6198045, 16013447, 41507254, 107887092, 281170859, 734518306, 1923119062, 5045423169, 13262334340, 34923020733, 92113656841

Offset

1,3

Comments

A rooted tree with thinning limbs is such that if a node has k children, all its children have at most k children.

Links

Table of n, a(n) for n=1..31.

Crossrefs

Cf. A032200, A124343-A124348.

Sequence in context: A300442 A152536 A185164 * A123256 A111275 A298537

Adjacent sequences: A124342 A124343 A124344 * A124346 A124347 A124348

Keyword

nonn

Author

Christian G. Bower, Oct 30 2006, suggested by Franklin T. Adams-Watters

Status

approved