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 | 12 |
| 4 | 36 |
| 5 | 72 |
| 6 | 144 |
| 7 | 288 |
| 8 | 576 |
| 9 | 720 |
| 10 | 1728 |
| 11 | 4608 |
| 12 | 2880 |
| 13 | 18432 |
| 14 | 7200 |
| 15 | 8640 |
| 16 | 14400 |
| 17 | 294912 |
| 18 | 20160 |
| 19 | 1179648 |
| 20 | 43200 |
| 21 | 50400 |
| 22 | 115200 |
| 23 | 18874368 |
| 24 | 100800 |
| 25 | 172800 |
| 26 | 460800 |
| 27 | 181440 |
| 28 | 352800 |
| 29 | 1207959552 |
| 30 | 302400 |
| 31 | 4831838208 |
| 32 | 705600 |
| 33 | 806400 |
| 34 | 7372800 |
| 35 | 1058400 |
| 36 | 907200 |
| 37 | 309237645312 |