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 | 3 |
| 4 | 6 |
| 5 | 12 |
| 6 | 36 |
| 7 | 59 |
| 8 | 208 |
| 9 | 373 |
| 10 | 1024 |
| 11 | 1380 |
| 12 | 5966 |
| 13 | 6012 |
| 14 | 20061 |
| 15 | 32939 |
| 16 | 91715 |
| 17 | 99540 |
| 18 | 381899 |
| 19 | 390781 |
| 20 | 1486746 |
| 21 | 1856858 |