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 | 1 |
| 4 | 1 |
| 5 | 1 |
| 6 | 1 |
| 7 | 1 |
| 8 | 6 |
| 9 | 1 |
| 10 | 1 |
| 11 | 1 |
| 12 | 24 |
| 13 | 168 |
| 14 | 1 |
| 15 | 1 |
| 16 | 1 |
| 17 | 48 |
| 18 | 5616 |
| 19 | 20160 |
| 20 | 1 |
| 21 | 1 |
| 22 | 1 |
| 23 | 120 |
| 24 | 43008 |
| 25 | 12130560 |
| 26 | 9999360 |
| 27 | 1 |
| 28 | 1 |
| 29 | 1 |
| 30 | 144 |
| 31 | 372000 |
| 32 | 660602880 |
| 33 | 237783237120 |
| 34 | 20158709760 |
| 35 | 1 |
| 36 | 1 |
| 37 | 1 |
| 38 | 336 |
| 39 | 943488 |
| 40 | 29016000000 |
| 41 | 167761422581760 |
| 42 | 42064805779476480 |
| 43 | 163849992929280 |
| 44 | 1 |