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.

A322925 Expansion of x*(1 + 2*x + 10*x^2)/((1 - x^2)*(1 - 10*x^2)).

Table of values

n a(n)
0 0
1 1
2 2
3 21
4 22
5 221
6 222
7 2221
8 2222
9 22221
10 22222
11 222221
12 222222
13 2222221
14 2222222
15 22222221
16 22222222
17 222222221
18 222222222
19 2222222221
20 2222222222
21 22222222221
22 22222222222
23 222222222221
24 222222222222
25 2222222222221
26 2222222222222
27 22222222222221

List of values

[0, 1, 2, 21, 22, 221, 222, 2221, 2222, 22221, 22222, 222221, 222222, 2222221, 2222222, 22222221, 22222222, 222222221, 222222222, 2222222221, 2222222222, 22222222221, 22222222222, 222222222221, 222222222222, 2222222222221, 2222222222222, 22222222222221]