OFFSET
0,4
COMMENTS
First row is essentially A109262.
EXAMPLE
Triangle begins
1,
1, 1,
2, 2, 1,
6, 5, 3, 1,
19, 15, 9, 4, 1,
63, 48, 29, 14, 5, 1,
215, 160, 97, 49, 20, 6, 1,
749, 548, 333, 173, 76, 27, 7, 1,
Production matrix begins
1, 1,
1, 1, 1,
2, 1, 1, 1,
2, 1, 1, 1, 1,
3, 1, 1, 1, 1, 1,
3, 1, 1, 1, 1, 1, 1,
4, 1, 1, 1, 1, 1, 1, 1
CROSSREFS
KEYWORD
AUTHOR
Paul Barry, Mar 15 2010
STATUS
approved