A036629 Number of 4-ary rooted trees with n nodes and height exactly 5.

0, 0, 0, 0, 0, 1, 4, 13, 36, 89, 206, 458, 980, 2048, 4181, 8393, 16571, 32318, 62231, 118663, 224014, 419419, 778816, 1435851, 2628373, 4780528, 8639699, 15522013, 27723788, 49241837, 86979730, 152821599, 267089009, 464393446

Offset

0,7

Links

Sean A. Irvine, Table of n, a(n) for n = 0..340

E. M. Rains and N. J. A. Sloane, On Cayley's Enumeration of Alkanes (or 4-Valent Trees), J. Integer Sequences, Vol. 2 (1999), Article 99.1.1.

Index entries for sequences related to rooted trees

Crossrefs

Sequence in context: A002727 A320589 A328542 * A350642 A079922 A053563

Adjacent sequences: A036626 A036627 A036628 * A036630 A036631 A036632

Keyword

nonn,fini,full

Author

N. J. A. Sloane.

Status

approved