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) |
|---|---|
| 1 | 1 |
| 2 | 4 |
| 3 | 12 |
| 4 | 6 |
| 5 | 80 |
| 6 | 32 |
| 7 | 2304 |
| 8 | 24 |
| 9 | 27 |
| 10 | 192 |
| 11 | 1114112 |
| 12 | 72 |
| 13 | 141733920768 |
| 14 | 5120 |
| 15 | 448 |
| 16 | 10 |
| 17 | 1199038364791120855040 |
| 18 | 108 |
| 19 | 43896425332801061786775324358698099277824 |
| 20 | 480 |
| 21 | 11264 |
| 22 | 2359296 |
| 23 | 29758566933990262223857743147232792318290386059069624958140599090033674317463552 |
| 24 | 192 |
| 25 | 405 |
| 26 | 292057776128 |
| 27 | 324 |
| 28 | 13824 |