n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | -1 |
3 | 1 |
4 | -2 |
5 | 3 |
6 | 1 |
7 | -3 |
8 | 6 |
9 | -10 |
10 | 1 |
11 | -4 |
12 | 10 |
13 | -20 |
14 | 35 |
15 | 1 |
16 | -5 |
17 | 15 |
18 | -35 |
19 | 70 |
20 | -126 |
21 | 1 |
22 | -6 |
23 | 21 |
24 | -56 |
25 | 126 |
26 | -252 |
27 | 462 |
28 | 1 |
29 | -7 |
30 | 28 |
31 | -84 |
32 | 210 |
33 | -462 |
34 | 924 |
35 | -1716 |
36 | 1 |
37 | -8 |
38 | 36 |
39 | -120 |
40 | 330 |
41 | -792 |
42 | 1716 |
43 | -3432 |
44 | 6435 |
45 | 1 |
46 | -9 |
47 | 45 |
48 | -165 |
49 | 495 |
50 | -1287 |
51 | 3003 |
52 | -6435 |
53 | 12870 |
54 | -24310 |
55 | 1 |
56 | -10 |
57 | 55 |
58 | -220 |
59 | 715 |
60 | -2002 |
61 | 5005 |
62 | -11440 |
63 | 24310 |
64 | -48620 |
65 | 92378 |
[1,1,-1,1,-2,3,1,-3,6,-10,1,-4,10,-20,35,1,-5,15, -35,70,-126,1,-6,21,-56,126,-252,462,1,-7,28,-84, 210,-462,924,-1716,1,-8,36,-120,330,-792,1716, -3432,6435,1,-9,45,-165,495,-1287,3003,-6435, 12870,-24310,1,-10,55,-220,715,-2002,5005,-11440, 24310,-48620,92378] |