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 | 12 |
| 3 | 18 |
| 4 | 56 |
| 5 | 117 |
| 6 | 810 |
| 7 | 992 |
| 8 | 2091 |
| 9 | 16256 |
| 10 | 796797 |
| 11 | 2488734 |
| 12 | 22122192 |
| 13 | 57636005 |
| 14 | 67100672 |
| 15 | 114243682 |