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 | 0 |
| 2 | 168 |
| 3 | 10164 |
| 4 | 535106 |
| 5 | 28658242 |
| 6 | 1610555756 |
| 7 | 95420380090 |
| 8 | 5945425725202 |
| 9 | 387907415514308 |
| 10 | 26381892105883904 |