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) |
|---|---|
| 19 | 1 |
| 20 | 1 |
| 21 | 11 |
| 22 | 16 |
| 23 | 99 |
| 24 | 174 |
| 25 | 875 |
| 26 | 1657 |
| 27 | 7352 |
| 28 | 13655 |
| 29 | 55787 |
| 30 | 107946 |
| 31 | 393317 |
| 32 | 751343 |
| 33 | 2624771 |
| 34 | 5056414 |
| 35 | 16243829 |
| 36 | 31688464 |
| 37 | 96658985 |