OFFSET
1,6
COMMENTS
Row sums = A002131: (1, 2, 4, 4, 6, 8, 8, 8, 13,...).
FORMULA
EXAMPLE
First few rows of the triangle are:
1;
1, 1;
1, 0, 3;
1, 1, 0, 2;
1, 0, 0, 0, 5;
1, 1, 3, 0, 0, 3;
1, 0, 0, 0, 0, 0, 7;
1, 1, 0, 2, 0, 0, 0, 4;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson & Mats Granvik, Jul 26 2008
STATUS
approved