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A036643 Number of 6-ary rooted trees with n nodes and height exactly 5. 0
0, 0, 0, 0, 0, 1, 4, 13, 36, 93, 225, 524, 1179, 2596, 5597, 11893, 24915, 51649, 105981, 215731, 435761, 874620, 1744890, 3463013, 6839211, 13448100, 26334344, 51374820, 99868542, 193493456, 373705537, 719606064, 1381698784, 2645695793 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,7

LINKS

Table of n, a(n) for n=0..33.

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: A221882 A235996 A036636 * A000299 A102301 A206603

Adjacent sequences:  A036640 A036641 A036642 * A036644 A036645 A036646

KEYWORD

nonn,fini

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified November 14 01:24 EST 2019. Contains 329108 sequences. (Running on oeis4.)