n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 120 |
6 | -1800 |
7 | 21000 |
8 | -235200 |
9 | 2693880 |
10 | -30504600 |
11 | 310239600 |
12 | -2026767600 |
13 | -22324267680 |
14 | 1480359360480 |
15 | -48314853350400 |
16 | 1332965821824000 |
17 | -34178451017685120 |
18 | 837433109548661760 |
19 | -19671723873906894720 |
20 | 436228097513559408000 |
[1,0,0,0,0,120,-1800,21000,-235200,2693880, -30504600,310239600,-2026767600,-22324267680, 1480359360480,-48314853350400,1332965821824000, -34178451017685120,837433109548661760, -19671723873906894720,436228097513559408000] |