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A081658 as a simple table

n a(n)
0 1
1 1
2 0
3 1
4 0
5 -1
6 1
7 0
8 -3
9 0
10 1
11 0
12 -6
13 0
14 5
15 1
16 0
17 1
18 -10
19 0
20 25
21 0
22 1
23 0
24 -15
25 0
26 75
27 0
28 -61
29 1
30 0
31 -21
32 0
33 175
34 0
35 -427
36 0
37 1
38 0
39 -28
40 0
41 350
42 0
43 -1708
44 0
45 1385
46 1
47 0
48 -36
49 0
50 630
51 0
52 -5124
53 0
54 12465
55 0
56 1
57 0
58 -45
59 0
60 1050
61 0
62 -12810
63 0
64 62325
65 0
66 -50521
67 1
68 0
69 -55
70 0
71 1650
72 0
73 -28182
74 0
75 228525
76 0
77 -555731
78 0
79 1
80 0
81 -66
82 0
83 2475
84 0

[1,1,0,1,0,-1,1,0,-3,0,1,0,-6,0,5,1,0,1,-10,0,25,
 0,1,0,-15,0,75,0,-61,1,0,-21,0,175,0,-427,0,1,0,
 -28,0,350,0,-1708,0,1385,1,0,-36,0,630,0,-5124,0,
 12465,0,1,0,-45,0,1050,0,-12810,0,62325,0,-50521,
 1,0,-55,0,1650,0,-28182,0,228525,0,-555731,0,1,0,
 -66,0,2475,0]

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Last modified February 18 09:42 EST 2019. Contains 320249 sequences. (Running on oeis4.)