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) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 6 |
| 5 | 8 |
| 6 | 21 |
| 7 | 36 |
| 8 | 84 |
| 9 | 164 |
| 10 | 356 |
| 11 | 691 |
| 12 | 1361 |
| 13 | 2342 |
| 14 | 3707 |
| 15 | 4830 |
| 16 | 5082 |
| 17 | 3843 |
| 18 | 2128 |
| 19 | 798 |
| 20 | 248 |
| 21 | 50 |
| 22 | 12 |
| 23 | 1 |
| 24 | 1 |