A129555 A054523 * A129372.
1, 1, 1, 3, 0, 1, 2, 1, 0, 1, 5, 0, 0, 0, 1, 3, 3, 1, 0, 0, 1, 7, 0, 0, 0, 0, 0, 1, 4, 2, 0, 1, 0, 0, 0, 1, 9, 0, 3, 0, 0, 0, 0, 0, 1, 5, 5, 0, 0, 1, 0, 0, 0, 0, 1
Offset: 0
Examples
First few rows of the triangle: 1; 1, 1; 3, 0, 1; 2, 1, 0, 1; 5, 0, 0, 0, 1; 3, 3, 1, 0, 0, 1; 7, 0, 0, 0, 0, 0, 1; 4, 2, 0, 1, 0, 0, 0, 1; 9, 0, 3, 0, 0, 0, 0, 0, 1; ...
Comments