n | a(n) |
---|---|
2 | 2 |
3 | -6 |
4 | 6 |
5 | 10 |
6 | -30 |
7 | -42 |
8 | 238 |
9 | 306 |
10 | -2790 |
11 | -3410 |
12 | 45606 |
13 | 53898 |
14 | -993902 |
15 | -1146810 |
16 | 27887070 |
17 | 31605346 |
18 | -979901046 |
19 | -1095183522 |
20 | 42166810390 |
21 | 46605422010 |
22 | -2181617832702 |
23 | -2389390959626 |
24 | 133636947954126 |
25 | 145257552124050 |
26 | -9566483624198150 |
27 | -10331802314134002 |
[2,-6,6,10,-30,-42,238,306,-2790,-3410,45606, 53898,-993902,-1146810,27887070,31605346, -979901046,-1095183522,42166810390,46605422010, -2181617832702,-2389390959626,133636947954126, 145257552124050,-9566483624198150, -10331802314134002] |