n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | -2 |
4 | 4 |
5 | -8 |
6 | 16 |
7 | -31 |
8 | 56 |
9 | -91 |
10 | 126 |
11 | -126 |
12 | 0 |
13 | 462 |
14 | -1715 |
15 | 4704 |
16 | -11319 |
17 | 25186 |
18 | -52920 |
19 | 105840 |
20 | -201684 |
21 | 364609 |
22 | -618772 |
23 | 964173 |
24 | -1309574 |
25 | 1309574 |
26 | 1 |
27 | -4970097 |
28 | 18874639 |
29 | -52835258 |
30 | 129107566 |
31 | -290081057 |
32 | 612479308 |
33 | -1227418279 |
34 | 2343572690 |
35 | -4261482736 |
[0,1,-2,4,-8,16,-31,56,-91,126,-126,0,462,-1715, 4704,-11319,25186,-52920,105840,-201684,364609, -618772,964173,-1309574,1309574,1,-4970097, 18874639,-52835258,129107566,-290081057,612479308, -1227418279,2343572690,-4261482736] |