OFFSET
0,1
COMMENTS
Row sums are A127971.
EXAMPLE
Triangle begins
1,
1, 1,
1, 0, 1,
1, 0, 0, 1,
1, 0, 1, 0, 1,
1, 0, 0, 0, 1, 1,
1, 0, 1, 0, 0, 0, 1,
1, 0, 0, 0, 0, 0, 0, 1,
1, 0, 1, 0, 1, 0, 0, 0, 1,
1, 0, 0, 0, 1, 0, 0, 0, 1, 1,
1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1,
1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1,
1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Paul Barry, Feb 09 2007
STATUS
approved