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 | 75 |
| 2 | 5625 |
| 3 | 347502 |
| 4 | 21162579 |
| 5 | 1274682671 |
| 6 | 76655305645 |
| 7 | 4606553380932 |
| 8 | 276789915709747 |
| 9 | 16630439634501547 |
| 10 | 999200176926554674 |
| 11 | 60034353063489024248 |
| 12 | 3607005574351298992200 |
| 13 | 216717354269519024539824 |