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 | 2 |
| 2 | 16 |
| 3 | 24 |
| 4 | 160 |
| 5 | 270 |
| 6 | 272 |
| 7 | 1456 |
| 8 | 3398 |
| 9 | 3418 |
| 10 | 3420 |
| 11 | 3422 |
| 12 | 13120 |
| 13 | 44686 |
| 14 | 118096 |
| 15 | 674934 |
| 16 | 1062880 |