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 | 1 |
| 2 | 3 |
| 3 | 31 |
| 4 | 412 |
| 5 | 6435 |
| 6 | 106108 |
| 7 | 1825803 |
| 8 | 32320892 |
| 9 | 584956651 |
| 10 | 10772558067 |
| 11 | 201219520632 |