A178121 Inverse of coefficient array of orthogonal polynomials P(n,x)=(x-2n)*P(n-1,x)-(2n-3)*P(n-2,x), P(0,x)=1,P(1,x)=x-2.
1, 2, 1, 5, 6, 1, 16, 32, 12, 1, 64, 180, 109, 20, 1, 308, 1111, 934, 276, 30, 1, 1727, 7554, 8095, 3352, 585, 42, 1, 11008, 56228, 72884, 39006, 9580, 1100, 56, 1, 78244, 454572, 688562, 451992, 144706, 23396, 1897, 72, 1, 611060, 3962218, 6845904, 5317440
Offset: 0
Examples
Triangle begins 1, 2, 1, 5, 6, 1, 16, 32, 12, 1, 64, 180, 109, 20, 1, 308, 1111, 934, 276, 30, 1, 1727, 7554, 8095, 3352, 585, 42, 1, 11008, 56228, 72884, 39006, 9580, 1100, 56, 1, 78244, 454572, 688562, 451992, 144706, 23396, 1897, 72, 1 Production matrix is 2, 1, 1, 4, 1, 0, 3, 6, 1, 0, 0, 5, 8, 1, 0, 0, 0, 7, 10, 1, 0, 0, 0, 0, 9, 12, 1, 0, 0, 0, 0, 0, 11, 14, 1, 0, 0, 0, 0, 0, 0, 13, 16, 1, 0, 0, 0, 0, 0, 0, 0, 15, 18, 1
Comments