n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 32 |
4 | 0 |
5 | 328 |
6 | 2976 |
7 | 25512 |
8 | 124352 |
9 | 758752 |
10 | 4852448 |
11 | 26735408 |
12 | 145945312 |
13 | 805129880 |
14 | 4334341216 |
15 | 22824469832 |
16 | 119276925152 |
17 | 617722010896 |
18 | 3163151197504 |
19 | 16059782780784 |
20 | 80965219241952 |
21 | 405344545960912 |
[0,0,32,0,328,2976,25512,124352,758752,4852448, 26735408,145945312,805129880,4334341216, 22824469832,119276925152,617722010896, 3163151197504,16059782780784,80965219241952, 405344545960912] |