OFFSET
0,7
EXAMPLE
Triangle begins:
1;
-1, 1;
1, -1, 1;
-3, 3, -3, 1;
15, -15, 15, -5, 1;
-165, 165, -165, 55, -11, 1;
3465, -3465, 3465, -1155, 231, -21, 1;
-148995, 148995, -148995, 49665, -9933, 903, -43, 1;
...
CROSSREFS
KEYWORD
AUTHOR
Paul Barry, Feb 19 2007
STATUS
approved