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 | 1 |
2 | -3 |
3 | 23 |
4 | -525 |
5 | 2695 |
6 | -29687 |
7 | 191991 |
8 | -10488701 |
9 | 70977675 |
10 | -968279181 |
11 | 6752850945 |
12 | -191225421641 |
13 | 1363019302883 |
14 | -19538003443615 |
15 | 140961586090743 |
16 | -16379289413266717 |
17 | 119621607825995891 |
18 | -1755802638936696081 |
19 | 12944528671963135869 |
20 | -383361262914445548739 |