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A154990 as a simple table

n a(n)
1 1
2 -1
3 1
4 -1
5 -1
6 1
7 -1
8 -1
9 -1
10 1
11 -1
12 -1
13 -1
14 -1
15 1
16 -1
17 -1
18 -1
19 -1
20 -1
21 1
22 -1
23 -1
24 -1
25 -1
26 -1
27 -1
28 1
29 -1
30 -1
31 -1
32 -1
33 -1
34 -1
35 -1
36 1
37 -1
38 -1
39 -1
40 -1
41 -1
42 -1
43 -1
44 -1
45 1
46 -1
47 -1
48 -1
49 -1
50 -1
51 -1
52 -1
53 -1
54 -1
55 1
56 -1
57 -1
58 -1
59 -1
60 -1
61 -1
62 -1
63 -1
64 -1
65 -1
66 1
67 -1
68 -1
69 -1
70 -1
71 -1
72 -1
73 -1

[1,-1,1,-1,-1,1,-1,-1,-1,1,-1,-1,-1,-1,1,-1,-1,-1,
 -1,-1,1,-1,-1,-1,-1,-1,-1,1,-1,-1,-1,-1,-1,-1,-1,
 1,-1,-1,-1,-1,-1,-1,-1,-1,1,-1,-1,-1,-1,-1,-1,-1,
 -1,-1,1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,1,-1,-1,-1,
 -1,-1,-1,-1]

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Last modified March 28 15:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)