A130267 A051731 * A051340.
1, 2, 2, 2, 1, 3, 3, 3, 1, 4, 2, 1, 1, 1, 5, 4, 4, 4, 1, 1, 6, 2, 1, 1, 1, 1, 1, 7, 4, 4, 2, 5, 1, 1, 1, 8, 3, 2, 4, 1, 1, 1, 1, 1, 9, 4, 4, 2, 2, 6, 1, 1, 1, 1, 10
Offset: 0
Examples
First few rows of the triangle: 1; 2, 2; 2, 1, 3; 3, 3, 1, 4; 2, 1, 1, 1, 5; 4, 4, 4, 1, 1, 6; 2, 1, 1, 1, 1, 1, 7; ...
Formula
Inverse Moebius transform of A051340.
Comments