n | a(n) |
---|---|
0 | 1 |
1 | -4 |
2 | 2 |
3 | -4 |
4 | -21 |
5 | -136 |
6 | -996 |
7 | -8152 |
8 | -73811 |
9 | -733244 |
10 | -7938186 |
11 | -93126716 |
12 | -1178054657 |
13 | -15998857056 |
14 | -232339375664 |
15 | -3594982133808 |
16 | -59070662442383 |
17 | -1027605845674036 |
18 | -18873206761567638 |
19 | -365015243426704372 |
20 | -7416392564276075453 |
21 | -157957992952546414328 |
[1,-4,2,-4,-21,-136,-996,-8152,-73811,-733244, -7938186,-93126716,-1178054657,-15998857056, -232339375664,-3594982133808,-59070662442383, -1027605845674036,-18873206761567638, -365015243426704372,-7416392564276075453, -157957992952546414328] |