OFFSET
1,2
COMMENTS
Row sums = A022096(n-1).
EXAMPLE
First few rows of the triangle are:
1;
5, 1
1, 5, 1;
5, -3, 10, 1;
1, 5, 3, 10, 1;
5, -7, 20, -1, 15, 1;
1, 5, 1, 20, 10, 15, 1;
...
CROSSREFS
KEYWORD
tabl,sign
AUTHOR
Gary W. Adamson, Jul 14 2007
EXTENSIONS
Corrected A-number in row sums reference R. J. Mathar, Jun 16 2009
STATUS
approved