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 | 42 |
| 2 | 647 |
| 3 | 8535 |
| 4 | 103528 |
| 5 | 1194898 |
| 6 | 13295014 |
| 7 | 144195756 |
| 8 | 1532754468 |
| 9 | 16036647028 |
| 10 | 165590166035 |
| 11 | 1691004116711 |
| 12 | 17103881636663 |
| 13 | 171555367761442 |
| 14 | 1708005328930678 |
| 15 | 16892696764660692 |
| 16 | 166083227626724726 |