n | a(n) |
---|---|
0 | 1 |
1 | -2 |
2 | -1 |
3 | 0 |
4 | -1 |
5 | -2 |
6 | -7 |
7 | -18 |
8 | -50 |
9 | -138 |
10 | -386 |
11 | -1092 |
12 | -3122 |
13 | -9004 |
14 | -26173 |
15 | -76606 |
16 | -225584 |
17 | -667880 |
18 | -1986932 |
19 | -5936754 |
20 | -17807936 |
21 | -53606646 |
22 | -161892564 |
23 | -490363820 |
24 | -1489319219 |
25 | -4534631182 |
26 | -13838799043 |
27 | -42323692348 |
28 | -129697503097 |
29 | -398183735878 |
30 | -1224576726538 |
31 | -3772166985448 |
32 | -11637362223230 |
33 | -35953168834338 |
34 | -111225021683891 |
[1,-2,-1,0,-1,-2,-7,-18,-50,-138,-386,-1092,-3122, -9004,-26173,-76606,-225584,-667880,-1986932, -5936754,-17807936,-53606646,-161892564, -490363820,-1489319219,-4534631182,-13838799043, -42323692348,-129697503097,-398183735878, -1224576726538,-3772166985448,-11637362223230, -35953168834338,-111225021683891] |