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 | 67 |
| 3 | 695263 |
| 4 | 994871 |
| 5 | 5616469 |
| 6 | 31471711 |
| 7 | 43693817 |
| 8 | 878757569 |
| 9 | 5149409929 |
| 10 | 7866434053 |
| 11 | 8603497223 |
| 12 | 13880125751 |