OFFSET
0,2
COMMENTS
Row sums = A028872: (1, 6, 13, 22, 33, 46, ...).
EXAMPLE
First few rows of the triangle:
1;
3, 3;
5, 3, 5;
7, 4, 4, 7;
9, 5, 5, 5, 9;
11, 6, 6, 6, 6, 11;
13, 7, 7, 7, 7, 7, 13;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Jul 28 2007
STATUS
approved