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 | 4 |
| 2 | 8 |
| 3 | 32 |
| 4 | 60 |
| 5 | 128 |
| 6 | 8192 |
| 7 | 43200 |
| 8 | 69360 |
| 9 | 120960 |
| 10 | 131072 |
| 11 | 524288 |
| 12 | 4146912 |
| 13 | 6549984 |
| 14 | 12927600 |
| 15 | 13335840 |
| 16 | 16329600 |
| 17 | 34715520 |
| 18 | 51603840 |
| 19 | 57879360 |
| 20 | 59633280 |
| 21 | 107775360 |
| 22 | 160797000 |
| 23 | 169155840 |
| 24 | 252067200 |
| 25 | 371226240 |
| 26 | 391789440 |
| 27 | 436230144 |
| 28 | 439883136 |
| 29 | 489888000 |
| 30 | 657296640 |