n | a(n) |
---|---|
0 | 1 |
1 | -1 |
2 | 2 |
3 | -5 |
4 | 11 |
5 | -24 |
6 | 53 |
7 | -117 |
8 | 258 |
9 | -569 |
10 | 1255 |
11 | -2768 |
12 | 6105 |
13 | -13465 |
14 | 29698 |
15 | -65501 |
16 | 144467 |
17 | -318632 |
18 | 702765 |
19 | -1549997 |
20 | 3418626 |
21 | -7540017 |
22 | 16630031 |
23 | -36678688 |
24 | 80897393 |
25 | -178424817 |
26 | 393528322 |
27 | -867954037 |
28 | 1914332891 |
29 | -4222194104 |
30 | 9312342245 |
31 | -20539017381 |
32 | 45300228866 |
33 | -99912799977 |
[1,-1,2,-5,11,-24,53,-117,258,-569,1255,-2768, 6105,-13465,29698,-65501,144467,-318632,702765, -1549997,3418626,-7540017,16630031,-36678688, 80897393,-178424817,393528322,-867954037, 1914332891,-4222194104,9312342245,-20539017381, 45300228866,-99912799977] |