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 | 7 |
| 2 | 13 |
| 3 | 37 |
| 4 | 30241 |
| 5 | 241921 |
| 6 | 2177281 |
| 7 | 2874009601 |
| 8 | 37362124801 |
| 9 | 38414242234368001 |
| 10 | 3722690410399436636160001 |
| 11 | 3138135704799606670560043344600445747200000001 |