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 | 56 |
| 1 | 1120 |
| 2 | 18592 |
| 3 | 300288 |
| 4 | 4877824 |
| 5 | 80349696 |
| 6 | 1344154112 |