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 | 1 |
3 | 3 |
4 | 13 |
5 | 69 |
6 | 431 |
7 | 3100 |
8 | 25264 |
9 | 230301 |
10 | 2323448 |
11 | 25713402 |
12 | 309822547 |
13 | 4038325082 |
14 | 56625410687 |
15 | 850040474751 |
16 | 13603082015860 |
17 | 231189547428654 |
18 | 4158861518106668 |
19 | 78949554006168724 |
20 | 1577308905369288069 |