OFFSET
1,2
COMMENTS
Row sums = A128261: (1, 3, 6, 9, 14, 14, 26, 18, 35, 31, ...).
EXAMPLE
First few rows of the triangle:
1;
2, 1;
3, 2, 1;
4, 1, 3, 1;
5, 4, 0, 4, 1;
6, 1, 1, 0, 5, 1;
7, 6, 6, 0, 0, 6, 1;
8, 1, 0, 1, 0, 0, 7, 1;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Feb 21 2007
STATUS
approved