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 | 37 |
| 2 | 331 |
| 3 | 2389 |
| 4 | 13841287189 |
| 5 | 65712362363534280139531 |
| 6 | 459986536544739960976789 |
| 7 | 54116956037952111668959660837 |
| 8 | 2651730845859653471779023381589 |