A128410 A128408 * A000012.
1, -2, -1, -2, -1, -1, 0, 0, 0, 0, -2, -1, -1, -1, -1, 4, 3, 2, 1, 1, 1, -2, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1
Offset: 1
Examples
First few rows of the triangle: 1; -2, -1; -2, -1, -1; 0, 0, 0, 0; -2, -1, -1, -1, -1; 4, 3, 2, 1, 1, 1; -2, -1, -1, -1, -1, -1, -1; ...
Comments