A036645 Number of 6-ary rooted trees with n nodes and height exactly 7.

0, 0, 0, 0, 0, 0, 0, 1, 6, 26, 94, 308, 941, 2738, 7681, 20968, 56018, 147131, 381058, 975598, 2473409, 6218751, 15522486, 38501024, 94961417, 233053346, 569395697, 1385522234, 3359014072, 8116121300, 19549835022, 46957109735, 112490488043

Offset

0,9

Links

Table of n, a(n) for n=0..32.

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: A036631 A224288 A036638 * A000393 A106392 A143132

Adjacent sequences: A036642 A036643 A036644 * A036646 A036647 A036648

Keyword

nonn,fini

Author

N. J. A. Sloane.

Status

approved