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 | 6817 |
| 2 | 390881 |
| 3 | 397186 |
| 4 | 5765057 |
| 5 | 5771362 |
| 6 | 6155426 |
| 7 | 214359137 |
| 8 | 214365442 |
| 9 | 214749506 |
| 10 | 220123682 |
| 11 | 815730977 |
| 12 | 815737282 |
| 13 | 816121346 |
| 14 | 821495522 |
| 15 | 1030089602 |
| 16 | 6975757697 |
| 17 | 6975764002 |
| 18 | 6976148066 |
| 19 | 6981522242 |
| 20 | 7190116322 |
| 21 | 7791488162 |