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 | 2 |
| 3 | 2 |
| 4 | 8 |
| 5 | 4 |
| 6 | 16 |
| 7 | 24 |
| 8 | 144 |
| 9 | 36 |
| 10 | 164 |
| 11 | 192 |
| 12 | 1168 |
| 13 | 976 |
| 14 | 5688 |
| 15 | 10656 |
| 16 | 91392 |
| 17 | 11424 |
| 18 | 67032 |
| 19 | 61840 |
| 20 | 403568 |
| 21 | 258956 |
| 22 | 1589080 |
| 23 | 2520324 |
| 24 | 22646880 |
| 25 | 10898976 |
| 26 | 67039504 |
| 27 | 93326800 |
| 28 | 819193248 |
| 29 | 924489888 |
| 30 | 7399407552 |
| 31 | 16309883520 |
| 32 | 187499658240 |
| 33 | 11718728640 |