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 | 0 |
3 | 7 |
4 | 24 |
5 | 201 |
6 | 1560 |
7 | 14743 |
8 | 154896 |
9 | 1813969 |
10 | 23346000 |
11 | 327496071 |
12 | 4970498280 |
13 | 81121077337 |
14 | 1416223931304 |
15 | 26328776843671 |
16 | 519178407998880 |
17 | 10821355158998433 |
18 | 237677397895531296 |
19 | 5485802780426178439 |
20 | 132728552830731814200 |
21 | 3358841601972480225001 |