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 | 64 |
| 1 | 2985984 |
| 2 | 113379904 |
| 3 | 1073741824 |
| 4 | 5489031744 |
| 5 | 19770609664 |
| 6 | 56800235584 |
| 7 | 139314069504 |
| 8 | 304006671424 |
| 9 | 606355001344 |
| 10 | 1126162419264 |
| 11 | 1973822685184 |
| 12 | 3297303959104 |
| 13 | 5289852801024 |
| 14 | 8198418170944 |