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 | 289 |
| 2 | 201601 |
| 3 | 222784 |
| 4 | 638401 |
| 5 | 868562 |
| 6 | 910116 |
| 7 | 4694048 |
| 8 | 4950625 |
| 9 | 8994001 |
| 10 | 9054081 |
| 11 | 19855936 |
| 12 | 30085225 |
| 13 | 32385152 |
| 14 | 47623801 |
| 15 | 55100929 |
| 16 | 72182016 |
| 17 | 78952178 |
| 18 | 85099058 |
| 19 | 86303522 |
| 20 | 91910569 |
| 21 | 104040000 |
| 22 | 105678400 |
| 23 | 111175936 |
| 24 | 112530002 |
| 25 | 128504896 |
| 26 | 133702969 |
| 27 | 193043236 |
| 28 | 204404209 |
| 29 | 216001809 |
| 30 | 237961476 |