OFFSET
1,3
COMMENTS
Row sums = A131428 starting (1, 3, 9, 27, 83, 263, ...).
EXAMPLE
First few rows of the triangle:
1;
1, 2;
1, 6, 2;
1, 12, 12, 2;
1, 20, 40, 20, 2;
1, 30, 100, 100, 30, 2;
1, 42, 210, 350, 210, 42, 2;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Jan 02 2008
STATUS
approved