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 | 0 |
| 2 | 1 |
| 3 | 7 |
| 4 | 13 |
| 5 | 58 |
| 6 | 129 |
| 7 | 253 |
| 8 | 1657 |
| 9 | 2244 |
| 10 | 2437 |
| 11 | 7924 |
| 12 | 9903 |
| 13 | 11899 |
| 14 | 18157 |
| 15 | 18957 |
| 16 | 23665 |
| 17 | 105609 |