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A055870 as a simple table

n a(n)
0 1
1 1
2 -1
3 1
4 -1
5 -1
6 1
7 -2
8 -2
9 1
10 1
11 -3
12 -6
13 3
14 1
15 1
16 -5
17 -15
18 15
19 5
20 -1
21 1
22 -8
23 -40
24 60
25 40
26 -8
27 -1
28 1
29 -13
30 -104
31 260
32 260
33 -104
34 -13
35 1
36 1
37 -21
38 -273
39 1092
40 1820
41 -1092
42 -273
43 21
44 1
45 1
46 -34
47 -714
48 4641
49 12376
50 -12376
51 -4641
52 714
53 34
54 -1
55 1
56 -55
57 -1870
58 19635
59 85085
60 -136136
61 -85085
62 19635
63 1870
64 -55
65 -1

[1,1,-1,1,-1,-1,1,-2,-2,1,1,-3,-6,3,1,1,-5,-15,15,
 5,-1,1,-8,-40,60,40,-8,-1,1,-13,-104,260,260,-104,
 -13,1,1,-21,-273,1092,1820,-1092,-273,21,1,1,-34,
 -714,4641,12376,-12376,-4641,714,34,-1,1,-55,
 -1870,19635,85085,-136136,-85085,19635,1870,-55,
 -1]

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Last modified February 23 06:42 EST 2020. Contains 332159 sequences. (Running on oeis4.)