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 | 222299 |
| 2 | 2418533 |
| 3 | 3019042 |
| 4 | 3147134 |
| 5 | 3604524 |
| 6 | 4722613 |
| 7 | 4722614 |
| 8 | 5716972 |
| 9 | 5765299 |
| 10 | 6428161 |
| 11 | 6443216 |
| 12 | 7747736 |
| 13 | 7764272 |
| 14 | 7820866 |
| 15 | 7820867 |
| 16 | 8314999 |
| 17 | 8368234 |
| 18 | 9386660 |
| 19 | 9776789 |
| 20 | 11630694 |
| 21 | 11887882 |
| 22 | 12134905 |
| 23 | 12378262 |
| 24 | 15836193 |
| 25 | 17052618 |