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 | 4 |
2 | 131 |
3 | 1681 |
4 | -8341 |
5 | 68644 |
6 | 369431 |
7 | 923521 |
8 | -10266601 |
9 | 278289124 |
10 | -45142549 |
11 | 385690321 |
12 | 28351798019 |
13 | 545917055044 |
14 | -2216460177409 |
15 | 15348835582081 |
16 | 113677067503919 |
17 | 421612384372804 |
18 | -3999798649362349 |
19 | 75132454060794001 |