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 | 34 |
| 3 | 3130 |
| 4 | 502599 |
| 5 | 83045488 |
| 6 | 13752277898 |
| 7 | 2277207309720 |
| 8 | 377099217207514 |
| 9 | 62445595052884887 |
| 10 | 10340702774554689140 |
| 11 | 1712370276674504142791 |
| 12 | 283560339737534813492944 |