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 | 2 |
| 2 | 14 |
| 3 | 276 |
| 4 | 10980 |
| 5 | 781712 |
| 6 | 58339148 |
| 7 | 3066831440 |
| 8 | 58170992144 |
| 9 | 313031791856 |
| 10 | 109957124552 |
| 11 | 5020721992 |
| 12 | 3980056 |
| 13 | 1140264 |
| 14 | 232228 |