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 | 1 |
| 2 | 0 |
| 3 | 12 |
| 4 | 8 |
| 5 | 5 |
| 6 | 0 |
| 7 | 48 |
| 8 | 24 |
| 9 | 320 |
| 10 | 281 |
| 11 | 0 |
| 12 | 1688 |
| 13 | 632 |
| 14 | 2951 |
| 15 | 3914 |
| 16 | 2752 |
| 17 | 0 |