n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 1 |
3 | -1 |
4 | 1 |
5 | 0 |
6 | -3 |
7 | 10 |
8 | -26 |
9 | 60 |
10 | -127 |
11 | 250 |
12 | -458 |
13 | 766 |
14 | -1107 |
15 | 1146 |
16 | 188 |
17 | -5782 |
18 | 22658 |
19 | -66620 |
20 | 170841 |
21 | -400001 |
22 | 869124 |
23 | -1755912 |
24 | 3263352 |
25 | -5403598 |
26 | 7264938 |
27 | -4950248 |
28 | -13623003 |
29 | 80819359 |
30 | -275474805 |
31 | 775529946 |
32 | -1954651995 |
33 | 4537336510 |
34 | -9788453019 |
35 | 19563409996 |
[1,-1,1,-1,1,0,-3,10,-26,60,-127,250,-458,766, -1107,1146,188,-5782,22658,-66620,170841,-400001, 869124,-1755912,3263352,-5403598,7264938,-4950248, -13623003,80819359,-275474805,775529946, -1954651995,4537336510,-9788453019,19563409996] |