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) |
|---|---|
| 17 | 1 |
| 18 | 1 |
| 19 | 10 |
| 20 | 14 |
| 21 | 82 |
| 22 | 145 |
| 23 | 652 |
| 24 | 1198 |
| 25 | 4880 |
| 26 | 9095 |
| 27 | 33810 |
| 28 | 61933 |
| 29 | 212087 |
| 30 | 405116 |
| 31 | 1261067 |
| 32 | 2366558 |
| 33 | 7163718 |
| 34 | 13477035 |
| 35 | 37969720 |
| 36 | 72363916 |
| 37 | 194919282 |