OFFSET
0,2
COMMENTS
EXAMPLE
First few rows of the triangle:
1;
2, 1;
4, 3, 1;
7, 6, 3, 1;
12, 11, 7, 3, 1;
20, 19, 14, 7, 3, 1;
33, 32, 26, 15, 7, 3, 1;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Jun 23 2007
STATUS
approved