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 | 1 |
| 2 | 8 |
| 3 | 216 |
| 4 | 13824 |
| 5 | 1728000 |
| 6 | 373248000 |
| 7 | 128024064000 |
| 8 | 65548320768000 |
| 9 | 47784725839872000 |
| 10 | 47784725839872000000 |
| 11 | 63601470092869632000000 |
| 12 | 109903340320478724096000000 |
| 13 | 241457638684091756838912000000 |
| 14 | 662559760549147780765974528000000 |
| 15 | 2236139191853373760085164032000000000 |