OFFSET
0,2
EXAMPLE
Triangle begins
1;
-2, 1;
-2, 0, 1;
2,-2, 0, 1;
-2, 0, 0, 0, 1;
6,-2,-2, 0, 0, 1;
-2, 0, 0, 0, 0, 0, 1;
-2, 2, 0,-2, 0, 0, 0, 1;
2, 0,-2, 0, 0, 0, 0, 0, 1;
6,-2, 0, 0,-2, 0, 0, 0, 0, 1;
CROSSREFS
KEYWORD
sign,tabl
AUTHOR
Paul Barry, Nov 12 2005
STATUS
approved