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 | 3 |
| 2 | 11 |
| 3 | 81 |
| 4 | 2089 |
| 5 | 211107 |
| 6 | 76211147 |
| 7 | 95054910473 |
| 8 | 410422012327681 |
| 9 | 6211807332775516467 |
| 10 | 334327967114349983723899 |
| 11 | 64835852334793138873642165105 |
| 12 | 45812640033676518721399820389451657 |