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 | 432 |
| 2 | 27648 |
| 3 | 314928 |
| 4 | 1769472 |
| 5 | 6750000 |
| 6 | 20155392 |
| 7 | 50824368 |
| 8 | 113246208 |
| 9 | 229582512 |
| 10 | 432000000 |
| 11 | 765314352 |
| 12 | 1289945088 |
| 13 | 2085181488 |
| 14 | 3252759552 |
| 15 | 4920750000 |
| 16 | 7247757312 |
| 17 | 10427429808 |
| 18 | 14693280768 |
| 19 | 20323820592 |
| 20 | 27648000000 |
| 21 | 37050964272 |
| 22 | 48980118528 |