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 | 20 |
2 | 304 |
3 | 4160 |
4 | 54016 |
5 | 680960 |
6 | 8433664 |
7 | 103301120 |
8 | 1256390656 |
9 | 15210905600 |
10 | 183604609024 |
11 | 2211845242880 |
12 | 26610862391296 |
13 | 319880104509440 |
14 | 3842959300624384 |
15 | 46150695979581440 |
16 | 554089826731687936 |
17 | 6651329720593940480 |
18 | 79833971045636767744 |
19 | 958151767735717068800 |