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A080908 as a simple table

n a(n)
0 0
1 1
2 -1
3 1
4 -1
5 0
6 0
7 1
8 0
9 -1
10 1
11 0
12 0
13 1
14 0
15 1
16 0
17 0
18 1
19 0
20 0
21 0
22 1
23 0
24 1
25 -1

[0,1,-1,1,-1,0,0,1,0,-1,1,0,0,1,0,1,0,0,1,0,0,0,1,
 0,1,-1]

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Last modified April 24 19:52 EDT 2024. Contains 371963 sequences. (Running on oeis4.)