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) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 4 |
| 6 | 10 |
| 7 | 16 |
| 8 | 35 |
| 9 | 60 |
| 10 | 126 |
| 11 | 225 |
| 12 | 462 |
| 13 | 848 |
| 14 | 1716 |
| 15 | 3188 |
| 16 | 6435 |
| 17 | 12095 |
| 18 | 24310 |