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 | 5 |
| 3 | 917 |
| 4 | 3223 |
| 5 | 62911 |
| 6 | 326329 |
| 7 | 395819 |
| 8 | 33504053 |
| 9 | 4446226763 |
| 10 | 17556128765 |
| 11 | 141613728437 |
| 12 | 5259417592253 |
| 13 | 113837290408523 |