OFFSET
1,3
COMMENTS
Row sums = A132820: (1, 4, 16, 65, 266, ...).
EXAMPLE
First few rows of the triangle are:
1;
1, 3;
1, 9, 6;
1, 18, 36, 10;
1, 30, 120, 100, 15;
1, 45, 300, 500, 225, 21;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Sep 02 2007
STATUS
approved