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 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 6 |
| 5 | 40 |
| 6 | 17 |
| 7 | 4 |
| 8 | 6 |
| 9 | 47 |
| 10 | 48 |
| 11 | 334 |
| 12 | 99 |
| 13 | 585 |
| 14 | 19 |
| 15 | 350 |
| 16 | 1201 |
| 17 | 197 |
| 18 | 3577 |
| 19 | 2020 |
| 20 | 870 |
| 21 | 2322 |
| 22 | 4488 |
| 23 | 6150 |
| 24 | 12397 |
| 25 | 7817 |