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) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 16 |
| 3 | 382 |
| 4 | 33940 |
| 5 | 10537021 |
| 6 | 10478502929 |
| 7 | 36396596300106 |
| 8 | 433087032815881242 |
| 9 | 17394297682298725368562 |