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 | 561 |
| 2 | 62745 |
| 3 | 576480525985 |
| 4 | 1886616373665 |
| 5 | 3193231538989185 |
| 6 | 11947816523586945 |
| 7 | 101817952350880305 |
| 8 | 171800042106877185 |