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 | 0 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 26 |
5 | 120 |
6 | 474 |
7 | -3500 |
8 | -169744 |
9 | -4739628 |
10 | -122528220 |
11 | -3244006128 |
12 | -89971866744 |
13 | -2643601630488 |
14 | -82449886989120 |
15 | -2730313541889120 |
16 | -95853665484598656 |
17 | -3561107748108889344 |
18 | -139703010646898138688 |
19 | -5774800668716738596896 |
20 | -250987866830927324395200 |