OFFSET
0,5
COMMENTS
Row sums 1, 0, -1, 1, -6, 6, -8, 8, 2, -2,.. build in pairs.
EXAMPLE
The triangle starts
1;
-1, 1;
1,-3, 1;
-1, 3,-2, 1;
1,-5, 2, -5, 1;
-1, 5,-1, 5, -3, 1;
1,-7, 1, 0, 3, -7, 1;
-1, 7,-4, 0, 2, 7,-4, 1;
1, 3, 4,-21, -2, 21, 4,-9, 1;
-1,-3,13, 21,-26,-21,10, 9,-5,1;
Pairs of numbers appear along adjacent diagonals. The first subdiagonal contains the sequence -A026741(n+2).
CROSSREFS
KEYWORD
AUTHOR
Paul Curtz, Jun 22 2008
EXTENSIONS
Edited by R. J. Mathar, Aug 06 2008
STATUS
approved