n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 0 |
3 | 3 |
4 | -4 |
5 | 45 |
6 | -180 |
7 | 1743 |
8 | -13704 |
9 | 135705 |
10 | -1613160 |
11 | 18065883 |
12 | -276222604 |
13 | 3655783365 |
14 | -65652672540 |
15 | 1034667581223 |
16 | -20865280018704 |
17 | 387014665823025 |
18 | -8593188683674320 |
19 | 184059142857923763 |
20 | -4464138375366282004 |
21 | 108277288526211374685 |
22 | -2858191345505462554500 |
[0,1,0,3,-4,45,-180,1743,-13704,135705,-1613160, 18065883,-276222604,3655783365,-65652672540, 1034667581223,-20865280018704,387014665823025, -8593188683674320,184059142857923763, -4464138375366282004,108277288526211374685, -2858191345505462554500] |