A245146 Number of n-node unlabeled rooted trees with thickening limbs and root outdegree (branching factor) 6.

1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 3, 3, 5, 5, 7, 7, 13, 14, 21, 26, 34, 40, 61, 72, 100, 127, 171, 209, 295, 367, 499, 638, 851, 1083, 1469, 1879, 2512, 3257, 4320, 5576, 7454, 9662, 12833, 16752, 22163, 28874, 38308, 50056, 66232, 86865, 114784, 150429

Offset

7,13

Links

Alois P. Heinz, Table of n, a(n) for n = 7..150

Crossrefs

Column k=6 of A245151.

Sequence in context: A133908 A111213 A333153 * A339102 A095878 A341143

Adjacent sequences: A245143 A245144 A245145 * A245147 A245148 A245149

Keyword

nonn

Author

Alois P. Heinz, Jul 12 2014

Status

approved