OFFSET
1,6
COMMENTS
The number of nodes in this graph is given by A144215.
LINKS
Rebecca Neville, Graphs whose vertices are forests with bounded degree, Graph Theory Notes of New York, LIV (2008), 12-21. [Wayback Machine link]
EXAMPLE
Triangle begins:
0
0 1
0 1 2
0 2 5 6
0 2 9 13 14
0 3 18 32 36 37
0 3 28 67 82 87 88
CROSSREFS
KEYWORD
AUTHOR
N. J. A. Sloane, Dec 20 2008
STATUS
approved