A036421 Number of ternary rooted trees with n nodes and height exactly 6.

0, 0, 0, 0, 0, 0, 1, 5, 19, 56, 151, 374, 889, 2032, 4529, 9858, 21075, 44320, 91928, 188288, 381392, 764683, 1519026, 2991601, 5844950, 11334761, 21827329, 41755112, 79376196, 149991258, 281805933, 526546799, 978614867, 1809450608

Offset: 0

Author

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

Keywords

• nonn
• fini
• full

Links

• Sean A. Irvine, Table of n, a(n) for n = 0..364
• Index entries for sequences related to rooted trees

Crossrefs

Cf. A036370, A036437.

Formula

a(n) = A036374(n) - A036373(n). - Sean A. Irvine, Oct 31 2020