A141155 Triangle read by rows, A140207 * A000012.
1, 2, 1, 4, 3, 2, 7, 6, 5, 3, 12, 11, 10, 8, 5, 19, 18, 17, 15, 12, 7, 30, 29, 28, 26, 23, 18, 11, 45, 44, 43, 41, 38, 33, 26, 15, 67, 66, 65, 63, 60, 55, 48, 37, 22, 97, 96, 95, 93, 90, 85, 78, 67, 52, 30
Offset: 0
Examples
First few rows of the triangle are: 1; 2, 1; 4, 3, 2; 7, 6, 5, 3; 12, 11, 10, 8, 5; 19, 18, 17, 15, 12, 7; 30, 29, 28, 26, 23, 18, 11; 45, 44, 43, 41, 38, 33, 26, 15; ... n-th row of the triangle = partial sums n-th row terms of triangle A140207 starting from the right. Example: row 3 = (7, 6, 5, 3), since row 3 of triangle A140207 = (1, 1, 2, 3).
Comments