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 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 2 |
| 6 | 6 |
| 7 | 24 |
| 8 | 18 |
| 9 | 6 |
| 10 | 24 |
| 11 | 192 |
| 12 | 216 |
| 13 | 96 |
| 14 | 24 |
| 15 | 120 |
| 16 | 1920 |
| 17 | 3240 |
| 18 | 1920 |
| 19 | 600 |
| 20 | 120 |
| 21 | 720 |
| 22 | 23040 |
| 23 | 58320 |
| 24 | 46080 |
| 25 | 18000 |
| 26 | 4320 |
| 27 | 720 |
| 28 | 5040 |
| 29 | 322560 |
| 30 | 1224720 |
| 31 | 1290240 |
| 32 | 630000 |
| 33 | 181440 |
| 34 | 35280 |
| 35 | 5040 |
| 36 | 40320 |
| 37 | 5160960 |
| 38 | 29393280 |
| 39 | 41287680 |
| 40 | 25200000 |
| 41 | 8709120 |
| 42 | 1975680 |