OFFSET
1,19
COMMENTS
LINKS
EXAMPLE
Triangle begins:
1
1
1 0
-1 1
1 0 0
-1 1 0
1 0 0 0 0
1 -2 1
0 1 -1 0 0
-1 0 1 0 0
1 0 0 0 0 0 0
1 -1 -1 1 0
1 0 0 0 0 0 0 0 0 0 0
-1 1 0 0 0 0 0
0 -1 1 0 0 0 0
-1 1 2 -3 1
1 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 1 -1 1 -1 0 0
For example, row 18 gives: s(221) = -h(32) + h(41) + h(221) - h(311).
CROSSREFS
KEYWORD
sign,tabf
AUTHOR
Gus Wiseman, Nov 20 2018
STATUS
approved