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 | 1 |
| 2 | 1 |
| 3 | 6 |
| 4 | 58 |
| 5 | 5829 |
| 6 | 58292915 |
| 7 | 5829291479146458 |
| 8 | 58292914791464577914645739573229 |
| 9 | 5829291479146457791464573957322929146457395732288957322869786615 |