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) |
---|---|
1 | 1 |
2 | 1 |
3 | -4 |
4 | -32 |
5 | 400 |
6 | 6912 |
7 | -153664 |
8 | -4194304 |
9 | 136048896 |
10 | 5120000000 |
11 | -219503494144 |
12 | -10567230160896 |
13 | 564668382613504 |
14 | 33174037869887488 |
15 | -2125764000000000000 |
16 | -147573952589676412928 |
17 | 11034809241396899282944 |
18 | 884295678882933431599104 |
19 | -75613185918270483380568064 |