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 | 12 |
| 5 | 228 |
| 6 | 241 |
| 7 | 308 |
| 8 | 956 |
| 9 | 1472 |
| 10 | 1493 |
| 11 | 3181 |
| 12 | 3726 |
| 13 | 4176 |
| 14 | 23209 |
| 15 | 25718 |
| 16 | 32834 |
| 17 | 36989 |
| 18 | 103957 |