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 | 16 |
| 2 | 4 |
| 3 | 196 |
| 4 | 968 |
| 5 | 8712 |
| 6 | 437400 |
| 7 | 85730400 |
| 8 | 5030690600 |
| 9 | 264615012500 |
| 10 | 5239012864 |
| 11 | 550886816376 |
| 12 | 2494017320776852 |