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 | 378624 |
| 2 | 661152 |
| 3 | 5479092 |
| 4 | 5526024 |
| 5 | 7179624 |
| 6 | 18744216 |
| 7 | 122321970 |
| 8 | 168201288 |
| 9 | 215676636 |
| 10 | 778701984 |
| 11 | 1482154170 |
| 12 | 1788138780 |
| 13 | 1974360132 |
| 14 | 2288979096 |
| 15 | 3361923780 |
| 16 | 4214315484 |
| 17 | 4757106144 |
| 18 | 4971510492 |
| 19 | 6264306144 |
| 20 | 6884356716 |
| 21 | 10730488296 |
| 22 | 11375549304 |
| 23 | 16851779736 |