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 | 1 |
| 1 | 1 |
| 2 | 37 |
| 3 | 48205 |
| 4 | 2251069309 |
| 5 | 3781498934895517 |
| 6 | 228658497157753687896157 |
| 7 | 497741851942315778953758074621149 |
| 8 | 39005151256058786340132305925534793975511005 |