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A168557 as a simple table

n a(n)
0 1
1 -2
2 2
3 2
4 -2
5 -3
6 -3
7 2
8 4
9 6
10 4
11 -2
12 -5
13 -10
14 -10
15 -5
16 2
17 6
18 15
19 20
20 15
21 6
22 -2
23 -7
24 -21
25 -35
26 -35
27 -21
28 -7
29 2
30 8
31 28
32 56
33 70
34 56
35 28
36 8
37 -2
38 -9
39 -36
40 -84
41 -126
42 -126
43 -84
44 -36
45 -9
46 2
47 10
48 45
49 120
50 210
51 252
52 210
53 120
54 45
55 10
56 -2
57 -11
58 -55
59 -165
60 -330
61 -462
62 -462
63 -330

[1,-2,2,2,-2,-3,-3,2,4,6,4,-2,-5,-10,-10,-5,2,6,
 15,20,15,6,-2,-7,-21,-35,-35,-21,-7,2,8,28,56,70,
 56,28,8,-2,-9,-36,-84,-126,-126,-84,-36,-9,2,10,
 45,120,210,252,210,120,45,10,-2,-11,-55,-165,-330,
 -462,-462,-330]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)