OFFSET
1,4
COMMENTS
Row sums = A059570: (1, 2, 6, 14, 34, 78, 178,...).
FORMULA
EXAMPLE
First few rows of the triangle are:
1;
1, 1;
2, 3, 1;
2, 6, 5, 1;
3, 10, 13, 7, 1;
3, 15, 27, 23, 9, 1;
4, 21, 48, 57, 36, 11, 1;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Feb 20 2007
STATUS
approved