A128586 Triangle read by rows: A007318^(-1) * A128540.
1, 0, 1, -1, 0, 2, 2, -3, -3, 3, -3, 8, 0, -7, 5, 4, -15, 10, 5, -17, 8, -5, 24, -30, 15, 27, -35, 13, 6, -35, 63, -70, -7, 77, -70, 21, -7, 48, -112, 182, -98, -84, 196, -134, 34, 8, -63, 180, -378, 378, -84, -336, 450, -251, 55, -9, 80, -270, 690, -966, 714, 210, -990, 980, -461, 89
Offset: 1
Examples
First few rows of the triangle: 1; 0, 1; -1, 0, 2; 2, -3, -3, 3; -3, 8, 0, -7, 5; 4, -15, 10, 5, -17, 8; ...
Formula
Inverse binomial transform of A128540.
Extensions
a(33) corrected, a(42)=-84 inserted and more terms from Georg Fischer, Jun 01 2023
Comments