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A163649 as a simple table

n a(n)
0 1
1 -1
2 1
3 1
4 -2
5 2
6 -1
7 3
8 -6
9 6
10 1
11 -4
12 12
13 -24
14 6
15 -1
16 5
17 -20
18 60
19 -30
20 30
21 1
22 -6
23 30
24 -120
25 90
26 -180
27 20
28 -1
29 7
30 -42
31 210
32 -210
33 630
34 -140
35 140
36 1
37 -8
38 56
39 -336
40 420
41 -1680
42 560
43 -1120
44 70

[1,-1,1,1,-2,2,-1,3,-6,6,1,-4,12,-24,6,-1,5,-20,
 60,-30,30,1,-6,30,-120,90,-180,20,-1,7,-42,210,
 -210,630,-140,140,1,-8,56,-336,420,-1680,560,
 -1120,70]

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)