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 | 4 |
4 | 48 |
5 | 328 |
6 | 4240 |
7 | 52092 |
8 | 842240 |
9 | 14598352 |
10 | 294741504 |
11 | 6501719860 |
12 | 159434125312 |
13 | 4248764847000 |
14 | 123112522876928 |
15 | 3840463241458732 |
16 | 128576024097914880 |
17 | 4594095412384753312 |
18 | 174592522399006720000 |
19 | 7030376888543624506212 |
20 | 299062278252922180468736 |