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 | 3 |
| 3 | 25 |
| 4 | 14 |
| 5 | 14641 |
| 6 | 44 |
| 7 | 24137569 |
| 8 | 70 |
| 9 | 1089 |
| 10 | 405 |
| 11 | 819628286980801 |
| 12 | 160 |
| 13 | 22563490300366186081 |
| 14 | 2752 |
| 15 | 9801 |
| 16 | 462 |
| 17 | 21559177407076402401757871041 |
| 18 | 1044 |
| 19 | 740195513856780056217081017732809 |
| 20 | 1520 |
| 21 | 141376 |
| 22 | 84992 |