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 | 16 |
| 3 | 211 |
| 4 | 7675 |
| 5 | 728935 |
| 6 | 159327093 |
| 7 | 90497940567 |
| 8 | 125050630010443 |
| 9 | 420541855354109634 |
| 10 | 3548467633453651525361 |
| 11 | 73505549006944543732634211 |
| 12 | 3751209136697289848938709033475 |