n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | -3 |
4 | -9 |
5 | -36 |
6 | -123 |
7 | -450 |
8 | -1764 |
9 | -6690 |
10 | -26649 |
11 | -104112 |
12 | -421248 |
13 | -1688337 |
14 | -6888978 |
15 | -28063296 |
16 | -115459524 |
17 | -475617330 |
18 | -1970737233 |
19 | -8184006855 |
20 | -34118533647 |
21 | -142565353488 |
22 | -597406140090 |
[1,0,0,-3,-9,-36,-123,-450,-1764,-6690,-26649, -104112,-421248,-1688337,-6888978,-28063296, -115459524,-475617330,-1970737233,-8184006855, -34118533647,-142565353488,-597406140090] |