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 | 15 |
2 | 255 |
3 | 4080 |
4 | 65520 |
5 | 1048305 |
6 | 16776960 |
7 | 268431105 |
8 | 4294962960 |
9 | 68719407120 |
10 | 1099511558160 |
11 | 17592184926480 |
12 | 281474975596815 |
13 | 4503599609479680 |
14 | 72057594020040960 |
15 | 1152921504320590335 |
16 | 18446744073423298800 |
17 | 295147905174771671280 |
18 | 4722366482865065107440 |