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 | 5 |
| 2 | 37 |
| 3 | 357 |
| 4 | 3941 |
| 5 | 46949 |
| 6 | 587621 |
| 7 | 7616357 |
| 8 | 101332837 |
| 9 | 1375876965 |
| 10 | 18987759461 |
| 11 | 265554114405 |
| 12 | 3755416368997 |
| 13 | 53610591434597 |
| 14 | 771525112379237 |
| 15 | 11181285666076517 |
| 16 | 163041321978836837 |
| 17 | 2390321854565988197 |