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 | 1 |
| 2 | 4 |
| 3 | 16 |
| 4 | 32 |
| 5 | 36 |
| 6 | 72 |
| 7 | 144 |
| 8 | 288 |
| 9 | 432 |
| 10 | 864 |
| 11 | 1728 |
| 12 | 3456 |
| 13 | 3600 |
| 14 | 5400 |
| 15 | 7200 |
| 16 | 10800 |
| 17 | 21600 |
| 18 | 43200 |
| 19 | 86400 |
| 20 | 151200 |
| 21 | 172800 |
| 22 | 216000 |
| 23 | 302400 |