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 | 2 |
3 | 6 |
4 | 58 |
5 | 460 |
6 | 5528 |
7 | 70308 |
8 | 1098060 |
9 | 18910512 |
10 | 371480832 |
11 | 8022952080 |
12 | 191325228576 |
13 | 4961955705408 |
14 | 139572074260656 |
15 | 4224646630879920 |
16 | 137077496211066384 |
17 | 4744151145076980864 |
18 | 174517898073769832448 |
19 | 6798949897214608689024 |
20 | 279688643858492900930496 |