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 | 2 |
2 | 4 |
3 | 6 |
4 | -32 |
5 | -686 |
6 | -8256 |
7 | -72394 |
8 | -200448 |
9 | 11160866 |
10 | 373370880 |
11 | 7696016614 |
12 | 100295200768 |
13 | -338643776142 |
14 | -77999443329024 |
15 | -3211092423560938 |
16 | -85537972638318592 |
17 | -1169784729390416830 |
18 | 33029632126142382080 |
19 | 3381750252027454249926 |
20 | 158090250687453045194752 |