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 | 1 |
| 2 | 5 |
| 3 | 37 |
| 4 | 601 |
| 5 | 14401 |
| 6 | 520801 |
| 7 | 25401601 |
| 8 | 1626189601 |
| 9 | 131682257281 |
| 10 | 13168407228481 |
| 11 | 1593350922240001 |
| 12 | 229442707280223361 |
| 13 | 38775788043632640001 |
| 14 | 7600054676241325858561 |
| 15 | 1710012252750418295078401 |
| 16 | 437763137119219420513804801 |
| 17 | 126513546505547170185216000001 |