0,4

A tree with a forbidden limb of length k is a tree where the path from any leaf inward hits a branching node or another leaf within k steps.

Index entries for sequences related to trees

E.g.f.: 1+x^4/2+x^5/2+x^6/2+B(x)-B(x)^2/2 where B(x) is e.g.f. of A052322.

Cf. A002955, A002988-A002992, A052318-A052329.

Sequence in context: A041105 A079076 A060356 this_sequence A012087 A012194 A132414

Adjacent sequences: A052320 A052321 A052322 this_sequence A052324 A052325 A052326

nonn

Christian G. Bower (bowerc(AT)usa.net), Dec 15 1999.