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 | 8 |
| 2 | 64 |
| 3 | 504 |
| 4 | 3928 |
| 5 | 30344 |
| 6 | 232696 |
| 7 | 1773384 |
| 8 | 13443064 |
| 9 | 101433800 |
| 10 | 762265720 |
| 11 | 5707893576 |
| 12 | 42605289208 |
| 13 | 317113497800 |
| 14 | 2354253598072 |
| 15 | 17437541654088 |
| 16 | 128885063291896 |
| 17 | 950791205063624 |
| 18 | 7001691181273720 |
| 19 | 51477520840048968 |