OFFSET
0,1
EXAMPLE
Triangle begins
1,
0, 1,
0, 0, 1,
0, 0, -1, 1,
0, 0, 1, -1, 1,
0, 0, 0, 0, 0, 1,
0, 0, -1, 1, -1, 0, 1,
0, 0, 1, -1, 1, -1, -1, 1,
0, 0, 0, 0, 0, 1, 0, -1, 1,
0, 0, 0, 0, 0, 1, 0, -1, 0, 1,
0, 0, -1, 1, -1, 1, 1, -1, 0, 0, 1
CROSSREFS
KEYWORD
sign,tabl
AUTHOR
Paul Barry, Feb 01 2007
STATUS
approved