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) |
|---|---|
| 2 | 246 |
| 3 | 288 |
| 4 | 892 |
| 5 | 9020 |
| 6 | 11456 |
| 7 | 23480 |
| 8 | 52274 |
| 9 | 33686 |
| 10 | 190070 |
| 11 | 1741856 |
| 12 | 1668564 |
| 13 | 7806762 |