cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A178104 Inverse of coefficient array of orthogonal polynomials P(n,x)=x*P(n-1,x)-(2n-3)*P(n-2,x), P(0,x)=1,P(1,x)=x.

Original entry on oeis.org

1, 0, 1, 1, 0, 1, 0, 4, 0, 1, 4, 0, 9, 0, 1, 0, 31, 0, 16, 0, 1, 31, 0, 111, 0, 25, 0, 1, 0, 364, 0, 286, 0, 36, 0, 1, 364, 0, 1794, 0, 610, 0, 49, 0, 1, 0, 5746, 0, 6064, 0, 1149, 0, 64, 0, 1, 5746, 0, 36066, 0, 16405, 0, 1981, 0, 81, 0, 1, 0, 113944, 0, 150901, 0, 38196, 0, 3196
Offset: 0

Views

Author

Paul Barry, May 20 2010

Keywords

Comments

Inverse is A178103. First row is aerated version of A128709.

Examples

			Triangle begins
1,
0, 1,
1, 0, 1,
0, 4, 0, 1,
4, 0, 9, 0, 1,
0, 31, 0, 16, 0, 1,
31, 0, 111, 0, 25, 0, 1,
0, 364, 0, 286, 0, 36, 0, 1,
364, 0, 1794, 0, 610, 0, 49, 0, 1
Production matrix is
0, 1,
1, 0, 1,
0, 3, 0, 1,
0, 0, 5, 0, 1,
0, 0, 0, 7, 0, 1,
0, 0, 0, 0, 9, 0, 1,
0, 0, 0, 0, 0, 11, 0, 1,
0, 0, 0, 0, 0, 0, 13, 0, 1,
0, 0, 0, 0, 0, 0, 0, 15, 0, 1