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 | 24 |
| 2 | 393264 |
| 3 | 114791328 |
| 4 | 6443237472 |
| 5 | 146484375120 |
| 6 | 1880970700608 |
| 7 | 16277353748544 |
| 8 | 105566002741440 |
| 9 | 549043363293048 |
| 10 | 2400292970716320 |
| 11 | 9113996005998048 |
| 12 | 30817824417926784 |
| 13 | 94497033256783248 |
| 14 | 266720718523641984 |
| 15 | 700630664636456640 |