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 | 4 |
| 4 | 3 |
| 5 | 1 |
| 6 | 24 |
| 7 | 18 |
| 8 | 5 |
| 9 | 1 |
| 10 | 192 |
| 11 | 144 |
| 12 | 40 |
| 13 | 7 |
| 14 | 1 |
| 15 | 1920 |
| 16 | 1440 |
| 17 | 400 |
| 18 | 70 |
| 19 | 9 |
| 20 | 1 |
| 21 | 23040 |
| 22 | 17280 |
| 23 | 4800 |
| 24 | 840 |
| 25 | 108 |
| 26 | 11 |
| 27 | 1 |
| 28 | 322560 |
| 29 | 241920 |
| 30 | 67200 |
| 31 | 11760 |
| 32 | 1512 |
| 33 | 154 |
| 34 | 13 |
| 35 | 1 |
| 36 | 5160960 |
| 37 | 3870720 |
| 38 | 1075200 |
| 39 | 188160 |
| 40 | 24192 |
| 41 | 2464 |
| 42 | 208 |
| 43 | 15 |
| 44 | 1 |