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) |
|---|---|
| 5 | 115 |
| 6 | 1612560 |
| 7 | 4681922770 |
| 8 | 5933930926484 |
| 9 | 4603693881222819 |
| 10 | 2608258836131076210 |