n | a(n) |
---|---|
0 | 1 |
1 | -3 |
2 | -9 |
3 | -45 |
4 | -270 |
5 | -1782 |
6 | -12474 |
7 | -90882 |
8 | -681615 |
9 | -5225715 |
10 | -40760577 |
11 | -322379109 |
12 | -2579032872 |
13 | -20830650120 |
14 | -169621008120 |
15 | -1390892266584 |
16 | -11474861199318 |
17 | -95173848770814 |
18 | -793115406423450 |
19 | -6637123664280450 |
20 | -55751838779955780 |
[1,-3,-9,-45,-270,-1782,-12474,-90882,-681615, -5225715,-40760577,-322379109,-2579032872, -20830650120,-169621008120,-1390892266584, -11474861199318,-95173848770814,-793115406423450, -6637123664280450,-55751838779955780] |