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 | 2 |
2 | 10 |
3 | 56 |
4 | 400 |
5 | 3610 |
6 | 39722 |
7 | 516400 |
8 | 7746016 |
9 | 131682290 |
10 | 2501963530 |
11 | 52541234152 |
12 | 1208448385520 |
13 | 30211209638026 |
14 | 815702660226730 |
15 | 23655377146575200 |
16 | 733316691543831232 |
17 | 24199450820946430690 |
18 | 846980778733125074186 |