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 | 6 |
| 4 | 8 |
| 5 | 13 |
| 6 | 23 |
| 7 | 44 |
| 8 | 48 |
| 9 | 72 |
| 10 | 73 |
| 11 | 231 |
| 12 | 337 |
| 13 | 396 |
| 14 | 503 |
| 15 | 1062 |
| 16 | 2816 |
| 17 | 5304 |
| 18 | 16767 |
| 19 | 27059 |