OFFSET
0,2
COMMENTS
Row sums = A117591: (1, 3, 5, 10, 19, 37, 72,...).
EXAMPLE
First few rows of the triangle are:
1;
2, 1;
1, 3, 1;
2, 3, 4, 1;
1, 6, 6, 5, 1;
2, 5, 13, 10, 6, 1;
1, 9, 15, 24, 15, 7, 1;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Jul 04 2007
STATUS
approved