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 | 33 |
| 2 | 561 |
| 3 | 2161 |
| 4 | 34625 |
| 5 | 283893 |
| 6 | 4409889 |
| 7 | 55520361 |
| 8 | 870473329 |
| 9 | 12869671489 |
| 10 | 204942934341 |
| 11 | 3212586862645 |