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 | 2 |
| 3 | 10 |
| 4 | 147 |
| 5 | 9536 |
| 6 | 1245294 |
| 7 | 444447937 |
| 8 | 436106162865 |
| 9 | 1123957773816109 |
| 10 | 7694570450089060470 |
| 11 | 140076394691747502547476 |