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 | 3 |
| 3 | 8 |
| 4 | 25 |
| 5 | 72 |
| 6 | 234 |
| 7 | 701 |
| 8 | 2119 |
| 9 | 5872 |
| 10 | 14772 |
| 11 | 31331 |
| 12 | 53512 |
| 13 | 68794 |
| 14 | 66816 |
| 15 | 49714 |
| 16 | 29706 |
| 17 | 14235 |
| 18 | 5679 |
| 19 | 1770 |
| 20 | 469 |
| 21 | 87 |
| 22 | 16 |
| 23 | 1 |
| 24 | 1 |