OFFSET
0,2
COMMENTS
Row sums = A167275: (1, 4, 4, 8, 4, 8, 8,...).
FORMULA
EXAMPLE
First few rows of the triangle =
1;
3, 1;
3, 0, 1;
1, 3, 3, 1;
3, 0, 0, 0, 1;
1, 3, 0, 0, 3, 1;
1, 0, 3, 0, 3, 0, 1;
3, 1, 1, 3, 1, 3, 3, 1;
3, 0, 0, 0, 0, 0, 0, 0, 1;
1, 3, 0, 0, 0, 0, 0, 0, 3, 1;
1, 0, 3, 0, 0, 0, 0, 0, 3, 0, 1;
3, 1, 1, 3, 0, 0, 0, 0, 1, 3, 3, 1;
1, 0, 0, 0, 3, 0, 0, 0, 3, 0, 0, 0, 1;
3, 1, 0, 0, 1, 3, 0, 0, 1, 3, 0, 0, 3, 1;
3, 0, 1, 0, 1, 0, 3, 0, 1, 0, 3, 0, 3, 0, 1
1, 3, 3, 1, 3, 1, 1, 3, 3, 1, 1, 3, 1, 3, 3, 1;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson & Mats Granvik, Oct 31 2009
STATUS
approved