OFFSET
0,3
COMMENTS
Row sums are -1. Second row pairwise difference of A071919.
EXAMPLE
Rows are {1}, {1,-2}, {1,-1,-1}, {1,0,-2,0}, {1,1,-2,-2,1}, ...
CROSSREFS
KEYWORD
sign,tabl
AUTHOR
Paul Barry, Feb 09 2003
STATUS
approved