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 | 24 |
| 2 | 768 |
| 3 | 13904 |
| 4 | 220968 |
| 5 | 3277728 |
| 6 | 46576336 |
| 7 | 642676704 |
| 8 | 8680278136 |
| 9 | 115349343264 |
| 10 | 1513379596864 |
| 11 | 19651887694240 |
| 12 | 253030595298696 |
| 13 | 3234828051983328 |
| 14 | 41105657832397744 |
| 15 | 519625334069189984 |
| 16 | 6539008095907322520 |