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 | 4 |
| 4 | 7 |
| 5 | 11 |
| 6 | 22 |
| 7 | 33 |
| 8 | 56 |
| 9 | 93 |
| 10 | 162 |
| 11 | 264 |
| 12 | 454 |
| 13 | 765 |
| 14 | 1307 |
| 15 | 2237 |
| 16 | 3849 |
| 17 | 6611 |
| 18 | 11472 |
| 19 | 19831 |
| 20 | 34446 |
| 21 | 59865 |
| 22 | 104293 |
| 23 | 181561 |
| 24 | 316924 |