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 | 393472 |
| 5 | 1953125 |
| 6 | 20155392 |
| 7 | 40353607 |
| 8 | 290936320 |
| 9 | 581140575 |
| 10 | 2000000000 |
| 11 | 2357947691 |
| 12 | 18064270080 |
| 13 | 10604499373 |
| 14 | 41322093568 |
| 15 | 76886718750 |
| 16 | 209122656384 |
| 17 | 118587876497 |
| 18 | 694262555136 |
| 19 | 322687697779 |
| 20 | 1792500000000 |
| 21 | 1588560093162 |
| 22 | 2414538435584 |
| 23 | 1801152661463 |