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 | 1 |
1 | 0 |
2 | 1 |
3 | 1 |
4 | 5 |
5 | 16 |
6 | 80 |
7 | 436 |
8 | 2891 |
9 | 22248 |
10 | 198774 |
11 | 2029140 |
12 | 23310386 |
13 | 296407466 |
14 | 4109654354 |
15 | 61348443380 |
16 | 976111067870 |
17 | 16423368282336 |
18 | 290404344321126 |
19 | 5370042566624118 |
20 | 103427555919931446 |