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.

A242369 a(n) = P(n, 1, -2*n-1, 1-2*n)/(n+1), P the Jacobi polynomial.

Table of values

n a(n)
0 1
1 1
2 3
3 19
4 185
5 2426
6 39907
7 788019
8 18130401
9 475697854
10 14004694451
11 456820603086
12 16343563014649
13 636020474595988
14 26736885607750515
15 1207031709414024451
16 58225055056545820545
17 2988064457570991780854
18 162517551565531508113699
19 9336340704734213892357498

List of values

[1, 1, 3, 19, 185, 2426, 39907, 788019, 18130401, 475697854, 14004694451, 456820603086, 16343563014649, 636020474595988, 26736885607750515, 1207031709414024451, 58225055056545820545, 2988064457570991780854, 162517551565531508113699, 9336340704734213892357498]