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 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 3 |
| 6 | 5 |
| 7 | 1 |
| 8 | 27 |
| 9 | 3 |
| 10 | 565 |
| 11 | 1 |
| 12 | 7085 |
| 13 | 25 |
| 14 | 3 |
| 15 | 11 |
| 16 | 1266205 |
| 17 | 9099507 |
| 18 | 17602325 |
| 19 | 128207979 |
| 20 | 119 |
| 21 | 1 |
| 22 | 13 |