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) |
|---|---|
| 0 | 3 |
| 1 | 5 |
| 2 | 743 |
| 3 | 59 |
| 4 | 312408461 |
| 5 | 13669 |
| 6 | 10920223 |
| 7 | 85691034670497287 |
| 8 | 795398356293665458781 |
| 9 | 14301636907 |
| 10 | 4280339305565030602944575375011 |