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 | 64 |
| 2 | 336 |
| 3 | 1672 |
| 4 | 8320 |
| 5 | 39616 |
| 6 | 186544 |
| 7 | 847520 |
| 8 | 3846192 |
| 9 | 16784384 |
| 10 | 72946352 |
| 11 | 304472976 |
| 12 | 1265186112 |