n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 5 |
5 | 16 |
6 | 61 |
7 | 216 |
8 | 937 |
9 | 6400 |
10 | 41881 |
11 | 125696 |
12 | 259181 |
13 | 18156672 |
14 | 225924245 |
15 | -930421504 |
16 | -25529526319 |
17 | 394852151296 |
18 | 8376428366257 |
19 | -97538559528960 |
20 | -2542034772205739 |
21 | 37824762737852416 |
[1,1,1,2,5,16,61,216,937,6400,41881,125696,259181, 18156672,225924245,-930421504,-25529526319, 394852151296,8376428366257,-97538559528960, -2542034772205739,37824762737852416] |