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.
n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 25 |
4 | 156 |
5 | 1048 |
6 | 8400 |
7 | 72384 |
8 | 710184 |
9 | 7519240 |
10 | 87797880 |
11 | 1098513880 |
12 | 14945280640 |
13 | 216079283040 |
14 | 3352657547680 |
15 | 55071779464352 |
16 | 961293645943680 |
17 | 17669716422651776 |
18 | 342988501737128576 |
19 | 6978772157389361280 |
20 | 149123855108936024576 |
21 | 3328674238745847019520 |