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 | 28 |
| 2 | 784 |
| 3 | 896 |
| 4 | 1024 |
| 5 | 3456 |
| 6 | 11664 |
| 7 | 38232 |
| 8 | 125316 |
| 9 | 423384 |
| 10 | 1430416 |
| 11 | 4755296 |
| 12 | 15808576 |
| 13 | 53167072 |
| 14 | 178810384 |
| 15 | 596712128 |
| 16 | 1991301376 |
| 17 | 6681462272 |
| 18 | 22418473984 |
| 19 | 74937067264 |
| 20 | 250488238144 |
| 21 | 839514567296 |
| 22 | 2813643921664 |
| 23 | 9412504049664 |