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 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 6 |
| 7 | 24 |
| 8 | 57 |
| 9 | 78 |
| 10 | 114 |
| 11 | 342 |
| 12 | 624 |
| 13 | 856 |
| 14 | 1432 |
| 15 | 10308 |
| 16 | 12654 |
| 17 | 27616 |
| 18 | 100056 |
| 19 | 537856 |
| 20 | 593836 |
| 21 | 769621 |
| 22 | 1434168 |
| 23 | 1473368 |
| 24 | 1636104 |
| 25 | 1823544 |
| 26 | 1862744 |
| 27 | 17968646 |
| 28 | 18108296 |
| 29 | 22412057 |
| 30 | 34713713 |
| 31 | 34853363 |
| 32 | 39280254 |
| 33 | 159690408 |
| 34 | 663706192 |