OFFSET
1,5
COMMENTS
Row sums give A000088, n >= 1.
The Grundy number of a graph is the largest k such that the graph has a greedy k-coloring for some ordering of its vertices. - Charles R Greathouse IV, Oct 16 2015
LINKS
FindStat - Combinatorial Statistic Finder, The Grundy number of a graph.
EXAMPLE
Triangle begins:
1,
1,1,
1,2,1,
1,5,4,1,
1,8,18,6,1,
1,15,67,63,9,1,
...
CROSSREFS
KEYWORD
AUTHOR
Christian Stump, Oct 14 2015
STATUS
approved