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 | 4 |
| 2 | 185 |
| 3 | 24361 |
| 4 | 921717757 |
| 5 | 1920600983 |
| 6 | 9086150726 |
| 7 | 913083071429 |
| 8 | 2014396919113 |
| 9 | 63178492261555241 |
| 10 | 9004315140856495091 |
| 11 | 63162327910155025982578333897 |
| 12 | 27030665951900873389459251276162714636270614605 |
| 13 | 71854905634496924458553731195035575408569457647039865953 |