n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 16 |
4 | 128 |
5 | 640 |
6 | 2560 |
7 | 8960 |
8 | 28672 |
9 | 86016 |
10 | 245760 |
11 | 675840 |
12 | 1802240 |
13 | 4685824 |
14 | 11927552 |
15 | 29818880 |
16 | 73400320 |
17 | 178257920 |
18 | 427819008 |
19 | 1016070144 |
20 | 2390753280 |
21 | 5578424320 |
22 | 12918456320 |
23 | 29712449536 |
24 | 67914170368 |
25 | 154350387200 |
26 | 348966092800 |
27 | 785173708800 |
28 | 1758789107712 |
[0,0,0,16,128,640,2560,8960,28672,86016,245760, 675840,1802240,4685824,11927552,29818880,73400320, 178257920,427819008,1016070144,2390753280, 5578424320,12918456320,29712449536,67914170368, 154350387200,348966092800,785173708800, 1758789107712] |