A036422 Number of ternary rooted trees with n nodes and height exactly 7.

0, 0, 0, 0, 0, 0, 0, 1, 6, 26, 88, 267, 743, 1968, 5006, 12394, 29984, 71289, 166927, 386042, 882887, 1999964, 4491226, 10008151, 22144282, 48681992, 106384313, 231200051, 499868227, 1075542674, 2303703530, 4913213715, 10436198873

Offset

0,9

Links

Sean A. Irvine, Table of n, a(n) for n = 0..1093

Index entries for sequences related to rooted trees

Formula

a(n) = A036375(n) - A036374(n). - Sean A. Irvine, Oct 31 2020

Crossrefs

Cf. A036370, A036437.

Sequence in context: A224035 A172207 A060101 * A166214 A032169 A032196

Adjacent sequences: A036419 A036420 A036421 * A036423 A036424 A036425

Keyword

nonn,fini,full

Author

N. J. A. Sloane, Eric Rains (rains(AT)caltech.edu)

Status

approved