A245147 Number of n-node unlabeled rooted trees with thickening limbs and root outdegree (branching factor) 7.

1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 3, 3, 5, 5, 7, 7, 9, 13, 16, 21, 28, 34, 42, 52, 70, 85, 113, 141, 185, 227, 290, 371, 474, 602, 771, 983, 1254, 1583, 2038, 2582, 3315, 4217, 5405, 6867, 8783, 11201, 14318, 18285, 23395, 29886, 38207, 48765, 62428

Offset

8,15

Links

Alois P. Heinz, Table of n, a(n) for n = 8..150

Crossrefs

Column k=7 of A245151.

Sequence in context: A339104 A073737 A237716 * A339103 A187072 A133908

Adjacent sequences: A245144 A245145 A245146 * A245148 A245149 A245150

Keyword

nonn

Author

Alois P. Heinz, Jul 12 2014

Status

approved