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 | 10 |
| 3 | 34 |
| 4 | 109 |
| 5 | 8189 |
| 6 | 108989 |
| 7 | 4470645 |
| 8 | 32727845 |
| 9 | 1095073836189 |
| 10 | 1091781620649419010 |