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 | 9 |
| 3 | 81 |
| 4 | 6561 |
| 5 | 531441 |
| 6 | 387420489 |
| 7 | 282429536481 |
| 8 | 1853020188851841 |
| 9 | 12157665459056928801 |
| 10 | 717897987691852588770249 |
| 11 | 42391158275216203514294433201 |
| 12 | 22528399544939174411840147874772641 |
| 13 | 11972515182562019788602740026717047105681 |