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 | 1 |
| 3 | 2 |
| 4 | 2 |
| 5 | 1 |
| 6 | 14 |
| 7 | 40 |
| 8 | 52 |
| 9 | 228 |
| 10 | 482 |
| 11 | 1592 |
| 12 | 4758 |
| 13 | 15810 |
| 14 | 53202 |
| 15 | 197429 |
| 16 | 725196 |