OFFSET
0,2
COMMENTS
(*) Full Triangle:
0;
1, 0;
2, 2, 0;
2, 3, 3, 0;
3, 6, 9, 9, 0;
3, 6, 10, 14, 14, 0;
FORMULA
Even rows (with a leading 1) are in A139687.Must be separated from odd rows.
CROSSREFS
KEYWORD
AUTHOR
Paul Curtz, Jun 14 2008
STATUS
approved