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 | 26 |
| 3 | 16151 |
| 4 | 252685526 |
| 5 | 98680063948026 |
| 6 | 963721858629894354276 |
| 7 | 235281247773992038934697401151 |
| 8 | 1436045713119204599875184429195350135526 |