A245127 Number of n-node rooted identity trees with thinning limbs and root outdegree (branching factor) 8.

4, 18, 75, 241, 732, 2048, 5507, 14149, 35406, 86251, 206060, 483503, 1118366, 2553371, 5766634, 12896468, 28598143, 62934478, 137565845, 298871089, 645779488, 1388442085, 2971788670, 6334659311, 13452368784, 28469327221, 60059197787, 126331495950, 265014539903

Offset: 31

Author

Alois P. Heinz, Jul 12 2014

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 31..500

Crossrefs

Column k=8 of A245120.

Programs

Maple

b:= proc(n, i, h, v) option remember; `if`(n=0, `if`(v=0, 1, 0),
      `if`(i<1 or v<1 or n b(n-1$2, 8$2):
seq(a(n), n=31..65);