A245148 Number of n-node unlabeled rooted trees with thickening limbs and root outdegree (branching factor) 8.

1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 5, 5, 7, 7, 9, 9, 15, 16, 23, 28, 36, 42, 54, 61, 83, 98, 127, 155, 203, 242, 309, 370, 479, 578, 739, 904, 1155, 1420, 1790, 2194, 2786, 3425, 4323, 5350, 6747, 8362, 10522, 13022, 16397, 20346, 25558

Offset

9,17

Links

Alois P. Heinz, Table of n, a(n) for n = 9..150

Crossrefs

Column k=8 of A245151.

Sequence in context: A339108 A206914 A175298 * A339104 A073737 A237716

Adjacent sequences: A245145 A245146 A245147 * A245149 A245150 A245151

Keyword

nonn

Author

Alois P. Heinz, Jul 12 2014

Status

approved