n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 52 |
3 | 0 |
4 | 1300 |
5 | 0 |
6 | 20800 |
7 | 0 |
8 | 239252 |
9 | 0 |
10 | 2107560 |
11 | 0 |
12 | 14797120 |
13 | 67108864 |
14 | 85155200 |
15 | 0 |
16 | 410468500 |
17 | 1744830464 |
18 | 1688240372 |
19 | 0 |
20 | 6030043240 |
21 | 21810380800 |
22 | 19043826880 |
23 | 0 |
24 | 54177864000 |
25 | 176227876864 |
26 | 141373532200 |
27 | 0 |
28 | 343594659200 |
29 | 1046898278400 |
30 | 786344740480 |
31 | 0 |
[1,0,52,0,1300,0,20800,0,239252,0,2107560,0, 14797120,67108864,85155200,0,410468500,1744830464, 1688240372,0,6030043240,21810380800,19043826880,0, 54177864000,176227876864,141373532200,0, 343594659200,1046898278400,786344740480,0] |