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 | 6000 |
| 2 | 331776 |
| 3 | 32400000 |
| 4 | 101154816 |
| 5 | 301056000000 |
| 6 | 89904012853248 |
| 7 | 208971104256000 |
| 8 | 12418325780889600 |
| 9 | 4982259375000000000 |
| 10 | 375291866372898816000 |
| 11 | 201550864919150779950956544000 |
| 12 | 438201295386966498858139607040000000 |
| 13 | 21789262703685125511464767107171876864000 |