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 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 4 |
| 5 | 125 |
| 6 | 6 |
| 7 | 16807 |
| 8 | 512 |
| 9 | 59049 |
| 10 | 1000 |
| 11 | 2357947691 |
| 12 | 1728 |
| 13 | 1792160394037 |
| 14 | 537824 |
| 15 | 170859375 |
| 16 | 268435456 |
| 17 | 2862423051509815793 |
| 18 | 1889568 |
| 19 | 5480386857784802185939 |
| 20 | 1280000000 |
| 21 | 350277500542221 |