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 | 4 |
| 3 | 27 |
| 4 | 256 |
| 5 | 3125 |
| 6 | 46656 |
| 7 | 823543 |
| 8 | 16777216 |
| 9 | 387420489 |
| 10 | 0 |
| 11 | 0 |
| 12 | -3 |
| 13 | -26 |
| 14 | -255 |
| 15 | -3124 |
| 16 | -46655 |
| 17 | -823542 |
| 18 | -16777215 |
| 19 | -387420488 |
| 20 | 3 |
| 21 | 3 |
| 22 | 0 |
| 23 | -23 |
| 24 | -252 |
| 25 | -3121 |
| 26 | -46652 |
| 27 | -823539 |
| 28 | -16777212 |
| 29 | -387420485 |
| 30 | 26 |
| 31 | 26 |
| 32 | 23 |
| 33 | 0 |
| 34 | -229 |
| 35 | -3098 |
| 36 | -46629 |
| 37 | -823516 |
| 38 | -16777189 |
| 39 | -387420462 |