OFFSET
0,4
COMMENTS
EXAMPLE
Triangle begins:
1;
1, 1;
3, 1, 1;
7, 3, 2, 1;
19, 6, 7, 3, 1;
51, 15, 20, 11, 4, 1;
...
CROSSREFS
KEYWORD
AUTHOR
Paul Barry, Feb 13 2006
STATUS
approved