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 | 564 |
| 3 | 11250 |
| 4 | 187019 |
| 5 | 2718572 |
| 6 | 35673854 |
| 7 | 431939504 |
| 8 | 4901224903 |
| 9 | 52724142720 |
| 10 | 542458862253 |
| 11 | 5374667759935 |
| 12 | 51561822161831 |
| 13 | 481068900940649 |
| 14 | 4380767665324085 |
| 15 | 39052633428110362 |
| 16 | 341657170980967653 |