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 | 1 |
| 3 | 3 |
| 4 | 4 |
| 5 | 6 |
| 6 | 12 |
| 7 | 22 |
| 8 | 29 |
| 9 | 62 |
| 10 | 119 |
| 11 | 208 |
| 12 | 368 |
| 13 | 650 |
| 14 | 1197 |
| 15 | 2173 |
| 16 | 3895 |
| 17 | 7022 |
| 18 | 12698 |
| 19 | 22940 |
| 20 | 41564 |