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 | 12 |
| 2 | 240 |
| 3 | 6624 |
| 4 | 234720 |
| 5 | 10208832 |
| 6 | 526810176 |
| 7 | 31434585600 |
| 8 | 2127785025024 |
| 9 | 161064469168128 |
| 10 | 13483480670745600 |
| 11 | 1237073710591635456 |
| 12 | 123437675536945410048 |
| 13 | 13308034251238570770432 |
| 14 | 1541580126710320881573888 |