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) |
|---|---|
| 3 | 8 |
| 4 | 175 |
| 5 | 39743 |
| 6 | 60333 |
| 7 | 28400079 |
| 8 | 292420227 |
| 9 | 9723178009 |
| 10 | 11596904605 |
| 11 | 17970237912815 |
| 12 | 20530907592845 |
| 13 | 50764671209056505 |
| 14 | 56436971899092485 |
| 15 | 62109279389181725 |
| 16 | 542166878698918075 |
| 17 | 2885442896258516289275 |
| 18 | 3106224746146152726675 |
| 19 | 22811796735204826462092225 |