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) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 4 |
| 3 | 8 |
| 4 | 6 |
| 5 | 6 |
| 6 | 24 |
| 7 | 16 |
| 8 | 60 |
| 9 | 10 |
| 10 | 0 |
| 11 | 0 |
| 12 | 0 |
| 13 | 144 |
| 14 | 576 |
| 15 | 2016 |
| 16 | 2700 |
| 17 | 0 |
| 18 | 384 |
| 19 | 5120 |
| 20 | 0 |
| 21 | 0 |
| 22 | 0 |
| 23 | 0 |
| 24 | 24696 |
| 25 | 21600 |
| 26 | 0 |
| 27 | 18816 |
| 28 | 691200 |
| 29 | 0 |
| 30 | 0 |
| 31 | 1032192 |
| 32 | 11757312 |
| 33 | 27993600 |
| 34 | 6096384 |
| 35 | 39191040 |
| 36 | 64012032 |
| 37 | 15240960 |
| 38 | 0 |
| 39 | 387072000 |
| 40 | 0 |
| 41 | 0 |
| 42 | 0 |
| 43 | 0 |
| 44 | 0 |
| 45 | 0 |
| 46 | 0 |
| 47 | 0 |
| 48 | 0 |
| 49 | 125971200 |
| 50 | 0 |
| 51 | 4180377600 |
| 52 | 0 |
| 53 | 0 |
| 54 | 0 |