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 | 0 |
| 2 | 20 |
| 3 | 0 |
| 4 | 180 |
| 5 | 1024 |
| 6 | 960 |
| 7 | 0 |
| 8 | 3380 |
| 9 | 10240 |
| 10 | 8424 |
| 11 | 0 |
| 12 | 16320 |
| 13 | 46080 |
| 14 | 28800 |
| 15 | 0 |
| 16 | 52020 |
| 17 | 133120 |
| 18 | 88660 |
| 19 | 0 |
| 20 | 129064 |
| 21 | 307200 |
| 22 | 175680 |
| 23 | 0 |
| 24 | 262080 |
| 25 | 626688 |
| 26 | 386920 |
| 27 | 0 |
| 28 | 489600 |
| 29 | 1131520 |
| 30 | 600960 |
| 31 | 0 |
| 32 | 840500 |