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 | 0 |
1 | 0 |
2 | 2 |
3 | 3 |
4 | 4 |
5 | 20 |
6 | 110 |
7 | 651 |
8 | 4520 |
9 | 36000 |
10 | 322618 |
11 | 3213595 |
12 | 35226860 |
13 | 421419492 |
14 | 5463436134 |
15 | 76301056755 |
16 | 1142009233872 |
17 | 18236159031584 |
18 | 309463272791538 |
19 | 5561354285804115 |
20 | 105510576441518164 |
21 | 2107380222724155540 |
22 | 44200537412519181278 |
23 | 971311172969442165883 |