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 | 256 |
| 2 | 3823 |
| 3 | 111621 |
| 4 | 3477361 |
| 5 | 124132900 |
| 6 | 4378313800 |
| 7 | 150624159314 |
| 8 | 5122053368703 |
| 9 | 173935962002791 |
| 10 | 5914591691652487 |
| 11 | 201302640481651930 |
| 12 | 6852837476350210815 |
| 13 | 233279127016289974579 |
| 14 | 7940697986290030781206 |
| 15 | 270291946695181993650338 |