n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | -2 |
3 | -2 |
4 | -5 |
5 | -9 |
6 | -36 |
7 | -104 |
8 | -365 |
9 | -1219 |
10 | -4213 |
11 | -14617 |
12 | -51570 |
13 | -183084 |
14 | -656536 |
15 | -2370066 |
16 | -8613590 |
17 | -31478538 |
18 | -115632718 |
19 | -426676244 |
20 | -1580878746 |
21 | -5878933054 |
22 | -21936060630 |
23 | -82100980070 |
24 | -308146839623 |
25 | -1159545407027 |
26 | -4373730398473 |
27 | -16533813947503 |
[1,-1,-2,-2,-5,-9,-36,-104,-365,-1219,-4213, -14617,-51570,-183084,-656536,-2370066,-8613590, -31478538,-115632718,-426676244,-1580878746, -5878933054,-21936060630,-82100980070, -308146839623,-1159545407027,-4373730398473, -16533813947503] |