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 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 1 |
| 7 | 6 |
| 8 | 2 |
| 9 | 8 |
| 10 | 6 |
| 11 | 60 |
| 12 | 2 |
| 13 | 288 |
| 14 | 48 |
| 15 | 84 |
| 16 | 60 |
| 17 | 3840 |
| 18 | 48 |
| 19 | 15552 |
| 20 | 144 |
| 21 | 4800 |
| 22 | 10080 |
| 23 | 221760 |
| 24 | 96 |
| 25 | 331776 |
| 26 | 138240 |
| 27 | 224640 |
| 28 | 25920 |
| 29 | 20321280 |
| 30 | 4032 |
| 31 | 108864000 |
| 32 | 345600 |
| 33 | 17694720 |
| 34 | 36495360 |
| 35 | 51701760 |
| 36 | 40320 |
| 37 | 11287019520 |
| 38 | 627056640 |
| 39 | 992839680 |