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 | 10000 |
| 2 | 250000 |
| 3 | 6250000 |
| 4 | 76562500 |
| 5 | 937890625 |
| 6 | 7353062500 |
| 7 | 57648010000 |
| 8 | 332052537600 |
| 9 | 1912622616576 |
| 10 | 8782450790400 |
| 11 | 40327580160000 |
| 12 | 155600676000000 |
| 13 | 600372506250000 |
| 14 | 2017918701562500 |
| 15 | 6782448969140625 |
| 16 | 20377491125062500 |