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.

A294971 Denominators of the partial sums for the Catalan constant A006752: Sum_{k=0..n} ((-1)^k)/(2*k+1)^2, n >= 0.

Table of values

n a(n)
0 1
1 9
2 225
3 11025
4 99225
5 12006225
6 2029052025
7 2029052025
8 586396035225
9 211688968716225
10 211688968716225
11 111983464450883025
12 2799586611272075625
13 25196279501448680625
14 21190071060718340405625
15 20363658289350325129805625

List of values

[1, 9, 225, 11025, 99225, 12006225, 2029052025, 2029052025, 586396035225, 211688968716225, 211688968716225, 111983464450883025, 2799586611272075625, 25196279501448680625, 21190071060718340405625, 20363658289350325129805625]