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 | 0 |
| 1 | 2 |
| 2 | 32 |
| 3 | 216 |
| 4 | 1024 |
| 5 | 4000 |
| 6 | 13824 |
| 7 | 43904 |
| 8 | 131072 |
| 9 | 373248 |
| 10 | 1024000 |
| 11 | 2725888 |
| 12 | 7077888 |
| 13 | 17997824 |
| 14 | 44957696 |
| 15 | 110592000 |
| 16 | 268435456 |
| 17 | 643956736 |
| 18 | 1528823808 |
| 19 | 3596091392 |
| 20 | 8388608000 |
| 21 | 19421724672 |
| 22 | 44660948992 |
| 23 | 102064193536 |
| 24 | 231928233984 |