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A089984 as a simple table

n a(n)
1 1
2 1
3 1
4 1
5 0
6 1
7 -1
8 1
9 -1
10 0
11 1
12 1
13 -1
14 1
15 -2
16 -1
17 3
18 5
19 -1
20 -2
21 7
22 -3
23 -13
24 97
25 200
26 2309
27 -226573
28 45538573
29 -105193879657
30 -23833987746960404
31 1085365814730154781188953
32 114173840897460294190477827374165629

[1,1,1,1,0,1,-1,1,-1,0,1,1,-1,1,-2,-1,3,5,-1,-2,7,
 -3,-13,97,200,2309,-226573,45538573,-105193879657,
 -23833987746960404,1085365814730154781188953,
 114173840897460294190477827374165629]

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Last modified April 25 10:22 EDT 2024. Contains 371967 sequences. (Running on oeis4.)