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 | 3 |
| 1 | 9 |
| 2 | 60 |
| 3 | 84 |
| 4 | 60 |
| 5 | 132 |
| 6 | 5460 |
| 7 | 12 |
| 8 | 1020 |
| 9 | 1596 |
| 10 | 660 |
| 11 | 276 |
| 12 | 5460 |
| 13 | 12 |
| 14 | 1740 |
| 15 | 28644 |
| 16 | 1020 |
| 17 | 12 |
| 18 | 3838380 |
| 19 | 12 |
| 20 | 27060 |
| 21 | 3612 |
| 22 | 1380 |
| 23 | 564 |
| 24 | 92820 |
| 25 | 132 |
| 26 | 3180 |
| 27 | 1596 |
| 28 | 1740 |
| 29 | 708 |
| 30 | 113573460 |
| 31 | 12 |
| 32 | 1020 |
| 33 | 129444 |
| 34 | 60 |
| 35 | 9372 |
| 36 | 280201740 |
| 37 | 12 |
| 38 | 60 |
| 39 | 6636 |
| 40 | 460020 |
| 41 | 996 |
| 42 | 6808620 |
| 43 | 12 |
| 44 | 122820 |