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) |
|---|---|
| 4 | 2732225029 |
| 5 | 314014500337 |
| 6 | 1949332597181 |
| 7 | 36440244156523 |
| 8 | 123167650691711 |
| 9 | 996133536974297 |
| 10 | 12637043369352469 |
| 11 | 26255687399203543 |
| 12 | 182859787113571787 |