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) |
|---|---|
| 0 | 0 |
| 1 | 4 |
| 2 | 32 |
| 3 | 320 |
| 4 | 520 |
| 5 | 512 |
| 6 | 12288 |
| 7 | 32768 |
| 8 | 131584 |
| 9 | 266240 |
| 10 | 1310720 |
| 11 | 8388608 |
| 12 | 4325376 |
| 13 | 39059456 |
| 14 | 100663296 |