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) |
---|---|
0 | 0 |
1 | 1 |
2 | 5 |
3 | 55 |
4 | 14187 |
5 | 314681540 |
6 | 254841004490568887 |
7 | 116515298784769863036311841843812470 |
8 | 16752745298264669840183664790312981823804061660537952218518280274360024 |