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 | 3 |
2 | -15 |
3 | 315 |
4 | -14175 |
5 | 1091475 |
6 | -127702575 |
7 | 21070924875 |
8 | -4656674397375 |
9 | 1327152203251875 |
10 | -473793336560919375 |
11 | 207047688077121766875 |
12 | -108700036240488927609375 |
13 | 67502722505343624045421875 |
14 | -48939473816374127432930859375 |
15 | 40962339584305144661363129296875 |