OFFSET
0,2
COMMENTS
Row sums = A072107: (1, 3, 6, 8, 13, 14,...).
FORMULA
EXAMPLE
First few rows of the triangle are:
1;
2, 1;
4, 1, 1;
4, 2, 1, 1;
8, 2, 1, 1, 1;
5, 4, 2, 1, 1, 1;
11, 4, 2, 1, 1, 1, 1;
11, 4, 2, 2, 1, 1, 1, 1;
11, 4, 4, 2, 1, 1, 1, 1, 1;
6, 8, 4, 2, 2, 1, 1, 1, 1, 1;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson and Mats Granvik, May 17 2008
STATUS
approved