n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 4 |
3 | 0 |
4 | 48 |
5 | 32 |
6 | 640 |
7 | 896 |
8 | 8960 |
9 | 18432 |
10 | 130048 |
11 | 337920 |
12 | 1941504 |
13 | 5857280 |
14 | 29605888 |
15 | 98435072 |
16 | 458424320 |
17 | 1624375296 |
18 | 7174881280 |
19 | 26507476992 |
20 | 113123524608 |
21 | 429538672640 |
22 | 1792440008704 |
23 | 6929367695360 |
24 | 28495396732928 |
[1,0,4,0,48,32,640,896,8960,18432,130048,337920, 1941504,5857280,29605888,98435072,458424320, 1624375296,7174881280,26507476992,113123524608, 429538672640,1792440008704,6929367695360, 28495396732928] |