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 | 14 |
| 2 | 196 |
| 3 | 216 |
| 4 | 1200 |
| 5 | 4416 |
| 6 | 14976 |
| 7 | 60984 |
| 8 | 231744 |
| 9 | 851400 |
| 10 | 3276624 |
| 11 | 12438144 |
| 12 | 46737936 |
| 13 | 177585096 |
| 14 | 673147200 |
| 15 | 2544020136 |
| 16 | 9639951936 |
| 17 | 36515578944 |
| 18 | 138204393264 |
| 19 | 523395873000 |
| 20 | 1982108510304 |
| 21 | 7504603109784 |
| 22 | 28417632893376 |