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 | 2 |
| 2 | 5 |
| 3 | 37 |
| 4 | 577 |
| 5 | 14401 |
| 6 | 131681894401 |
| 7 | 13168189440001 |
| 8 | 1593350922240001 |
| 9 | 38775788043632640001 |
| 10 | 384956219213331276939737002152967117209600000001 |