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 | 512 |
| 3 | 19683 |
| 4 | 262144 |
| 5 | 1953125 |
| 6 | 93312 |
| 7 | 40353607 |
| 8 | 134217728 |
| 9 | 387420489 |
| 10 | 500000000 |
| 11 | 2357947691 |
| 12 | 1289945088 |
| 13 | 10604499373 |
| 14 | 2582630848 |
| 15 | 1423828125 |
| 16 | 68719476736 |
| 17 | 118587876497 |
| 18 | 7346640384 |
| 19 | 322687697779 |