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A138189 as a simple table

n a(n)
0 1
1 -2
2 -2
3 1
4 -4
5 -4
6 1
7 -6
8 -6
9 1
10 -8
11 -8
12 1
13 -10
14 -10
15 1
16 -12
17 -12
18 1
19 -14
20 -14
21 1
22 -16
23 -16
24 1
25 -18
26 -18
27 1
28 -20
29 -20
30 1
31 -22
32 -22
33 1
34 -24
35 -24
36 1
37 -26
38 -26
39 1
40 -28
41 -28
42 1
43 -30
44 -30
45 1
46 -32
47 -32
48 1
49 -34
50 -34
51 1
52 -36
53 -36
54 1
55 -38
56 -38
57 1
58 -40
59 -40

[1,-2,-2,1,-4,-4,1,-6,-6,1,-8,-8,1,-10,-10,1,-12,
 -12,1,-14,-14,1,-16,-16,1,-18,-18,1,-20,-20,1,-22,
 -22,1,-24,-24,1,-26,-26,1,-28,-28,1,-30,-30,1,-32,
 -32,1,-34,-34,1,-36,-36,1,-38,-38,1,-40,-40]

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Last modified June 19 03:38 EDT 2021. Contains 345125 sequences. (Running on oeis4.)