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 | 0 |
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 5 |
| 6 | 8 |
| 7 | 11 |
| 8 | 21 |
| 9 | 28 |
| 10 | 54 |
| 11 | 68 |
| 12 | 135 |
| 13 | 183 |
| 14 | 360 |
| 15 | 470 |
| 16 | 948 |
| 17 | 1234 |
| 18 | 2479 |
| 19 | 3294 |
| 20 | 6531 |
| 21 | 8713 |
| 22 | 17120 |
| 23 | 23200 |