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 | 42 |
| 2 | 3472 |
| 3 | 56896 |
| 4 | 544635 |
| 5 | 234852352 |
| 6 | 60129083392 |
| 7 | 962070839296 |
| 8 | 16140901056979664896 |
| 9 | 18609191940988822212582848311676895232 |