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 | 0 |
| 2 | 744 |
| 3 | 12252 |
| 4 | 236960 |
| 5 | 3596174 |
| 6 | 55491832 |
| 7 | 800733668 |
| 8 | 11458879568 |
| 9 | 159796058742 |
| 10 | 2205638713335 |
| 11 | 30049236232518 |
| 12 | 406011322471540 |
| 13 | 5441799029248756 |
| 14 | 72482603197808516 |
| 15 | 960023683579703110 |
| 16 | 12655255863840772464 |