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) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 9 |
| 7 | 12 |
| 8 | 30 |
| 9 | 49 |
| 10 | 56 |
| 11 | 115 |
| 12 | 118 |
| 13 | 376 |
| 14 | 432 |
| 15 | 1045 |
| 16 | 1310 |
| 17 | 6529 |
| 18 | 7768 |
| 19 | 8430 |
| 20 | 21942 |
| 21 | 26930 |
| 22 | 33568 |