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 | 40 |
2 | 1620 |
3 | 49848 |
4 | 1375152 |
5 | 35690460 |
6 | 890824020 |
7 | 21639043284 |
8 | 515235810840 |
9 | 12081465854052 |
10 | 279877517457936 |
11 | 6420164883723960 |
12 | 146080173897129444 |
13 | 3301145304079911108 |
14 | 74165789377610689020 |
15 | 1657889614174445634696 |