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 | 5 |
| 2 | 12 |
| 3 | 19822 |
| 4 | 281984 |
| 5 | 548600 |
| 6 | 1665863 |
| 7 | 6154167 |
| 8 | 668316881 |
| 9 | 705145645 |
| 10 | 4259192969 |
| 11 | 6791367165 |
| 12 | 13266297467 |