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) |
---|---|
3 | 1 |
4 | 3 |
5 | 12 |
6 | 55 |
7 | 276 |
8 | 1470 |
9 | 8160 |
10 | 46692 |
11 | 273450 |
12 | 1631091 |
13 | 9874836 |
14 | 60522111 |
15 | 374783066 |
16 | 2341345848 |
17 | 14738239920 |
18 | 93389126442 |
19 | 595210710006 |
20 | 3813127548837 |
21 | 24540706889124 |
22 | 158592962937843 |
23 | 1028721051285840 |