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 | 0 |
| 2 | 4 |
| 3 | 9 |
| 4 | 64 |
| 5 | 25 |
| 6 | 7992 |
| 7 | 49 |
| 8 | 2097152 |
| 9 | 59049 |
| 10 | 100000001000 |
| 11 | 121 |
| 12 | 106993241210880 |
| 13 | 169 |
| 14 | 30491346729331198648 |
| 15 | 8649756618750 |
| 16 | 75557863725914323419136 |
| 17 | 289 |
| 18 | 74347713614042750878184448000 |
| 19 | 361 |
| 20 | 53687091200000000000000000001280000000 |
| 21 | 30041942495081695978842 |
| 22 | 412195366437884247746798137865015318817176 |