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) |
|---|---|
| 3 | 1 |
| 4 | 3 |
| 5 | 11 |
| 6 | 82 |
| 7 | 942 |
| 8 | 14162 |
| 9 | 242110 |
| 10 | 4492455 |
| 11 | 88181555 |
| 12 | 1808322585 |
| 13 | 38406536120 |
| 14 | 839691224953 |
| 15 | 18810933303213 |