1,3

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

N. J. A. Sloane, Transforms

Index entries for sequences related to rooted trees

a(n) satisfies a=SHIFT_RIGHT(EULER(a-b)) where b(6)=1, b(k)=0 if k != 6.

Cf. A002955, A002988-A002992, A052318-A052328.

Sequence in context: A014267 A089405 A091500 this_sequence A036624 A034823 A036625

Adjacent sequences: A052326 A052327 A052328 this_sequence A052330 A052331 A052332

nonn

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