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 | 4 |
| 4 | 2 |
| 5 | 11 |
| 6 | 56 |
| 7 | 3 |
| 8 | 29 |
| 9 | 370 |
| 10 | 5752 |
| 11 | 4 |
| 12 | 94 |
| 13 | 2666 |
| 14 | 82310 |
| 15 | 2519124 |
| 16 | 6 |
| 17 | 263 |
| 18 | 19126 |
| 19 | 1232770 |
| 20 | 88117873 |
| 21 | 6126859968 |
| 22 | 12 |
| 23 | 968 |
| 24 | 134902 |
| 25 | 19119198 |
| 26 | 2835424200 |