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 | 22 |
| 2 | 22 |
| 3 | 484 |
| 4 | 744 |
| 5 | 25080 |
| 6 | 45000 |
| 7 | 2551604 |
| 8 | 4923882 |
| 9 | 362643556 |
| 10 | 760921872 |
| 11 | 67380659016 |
| 12 | 143668888998 |
| 13 | 14708225919640 |
| 14 | 31720212766700 |
| 15 | 3619610990119432 |