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 | 7 |
| 3 | 39 |
| 4 | 234 |
| 5 | 687 |
| 6 | 3882 |
| 7 | 13999 |
| 8 | 196017 |
| 9 | 786499 |
| 10 | 2790000 |
| 11 | 3898880 |
| 12 | 150002496 |
| 13 | 150002496 |
| 14 | 22094555327 |
| 15 | 164777407488 |