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 | 14 |
| 3 | 833 |
| 4 | 83006 |
| 5 | 10213854 |
| 6 | 1404124008 |
| 7 | 206635997673 |
| 8 | 31844571309110 |
| 9 | 5073749573133710 |
| 10 | 829012595472718580 |
| 11 | 138151786440502006186 |
| 12 | 23390450962161609522028 |
| 13 | 4012173837912126230070832 |