OFFSET
1,1
COMMENTS
EXAMPLE
First few rows of the triangle:
1;
-1, -1;
-1, 0, -1;
0, 0, 0, 0;
-1, 0, 0, 0, -1;
1, 1, 1, 0, 0, 1;
...
CROSSREFS
KEYWORD
tabl,sign
AUTHOR
Gary W. Adamson, Mar 01 2007
EXTENSIONS
a(45) = 0 inserted and more terms from Georg Fischer, Jun 05 2023
STATUS
approved