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 | 1 |
| 4 | 2 |
| 5 | 1 |
| 6 | 12 |
| 7 | 1 |
| 8 | 43 |
| 9 | 132 |
| 10 | 547 |
| 11 | 1 |
| 12 | 7834 |
| 13 | 1 |
| 14 | 30442 |
| 15 | 608887 |
| 16 | 3834978 |
| 17 | 1 |
| 18 | 84536629 |
| 19 | 1 |
| 20 | 3030450058 |
| 21 | 79538220753 |
| 22 | 16701983083 |
| 23 | 1 |
| 24 | 4136127573912 |
| 25 | 26625599501697 |
| 26 | 2730194738935 |