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 | -48 |
| 2 | 432 |
| 3 | 3264 |
| 4 | 9456 |
| 5 | 21600 |
| 6 | 39744 |
| 7 | 66432 |
| 8 | 105840 |
| 9 | 147984 |
| 10 | 220320 |
| 11 | 281664 |
| 12 | 393792 |
| 13 | 475104 |
| 14 | 646272 |
| 15 | 743040 |
| 16 | 980592 |
| 17 | 1091232 |
| 18 | 1432944 |
| 19 | 1536960 |
| 20 | 1965600 |
| 21 | 2118144 |
| 22 | 2649024 |
| 23 | 2761344 |
| 24 | 3516480 |
| 25 | 3557040 |
| 26 | 4433184 |
| 27 | 4594560 |
| 28 | 5575296 |
| 29 | 5603040 |
| 30 | 6998400 |
| 31 | 6864384 |
| 32 | 8407152 |
| 33 | 8494848 |
| 34 | 10085472 |
| 35 | 9918720 |
| 36 | 12319152 |