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 | 56 |
| 2 | 5470 |
| 3 | 2322599 |
| 4 | 4286833981 |
| 5 | 34389632236877 |
| 6 | 1199143411128185584 |
| 7 | 181744271406372884215557 |
| 8 | 119728593804039164010819562504 |