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 | 0 |
3 | 7 |
4 | -28 |
5 | 405 |
6 | -4514 |
7 | 75313 |
8 | -1336824 |
9 | 28494793 |
10 | -672782950 |
11 | 17874984501 |
12 | -521966931716 |
13 | 16702822898749 |
14 | -579928752836874 |
15 | 21736834275178345 |
16 | -874384126286848624 |
17 | 37581186999500130321 |
18 | -1718628399364227445070 |
19 | 83327485224351815544925 |