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 | 3 |
| 2 | 5 |
| 3 | 29 |
| 4 | 1889 |
| 5 | 20789 |
| 6 | 270269 |
| 7 | 15811707161249 |
| 8 | 443286190953399543749 |
| 9 | 433724868863888852244234239999 |
| 10 | 163685683629861106170483229851647999999 |
| 11 | 10144121732653119949813597183199268946575359999999 |
| 12 | 67476497990875549413061344119283906281177486718749 |