n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 0 |
3 | 2 |
4 | -2 |
5 | 18 |
6 | -128 |
7 | 740 |
8 | -3204 |
9 | -6076 |
10 | 210304 |
11 | -1097064 |
12 | -29284760 |
13 | 398231768 |
14 | 792490752 |
15 | -124480674448 |
16 | 1471405254928 |
17 | -2684728872720 |
18 | -64686947480576 |
19 | -626709774748384 |
20 | -10524779012515104 |
21 | 689522178752789024 |
22 | 34910956277827256320 |
[1,-1,0,2,-2,18,-128,740,-3204,-6076,210304, -1097064,-29284760,398231768,792490752, -124480674448,1471405254928,-2684728872720, -64686947480576,-626709774748384, -10524779012515104,689522178752789024, 34910956277827256320] |