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) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 2 |
| 8 | 5 |
| 9 | 29 |
| 10 | 1241 |
| 11 | 3642581 |
| 12 | 80305336110269 |
| 13 | 93845241317908146817718208193 |
| 14 | 1831028415236189172750287983272896126569309241020364043033034 |