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A180215
as a simple table
n
a(n)
1
1
2
2
3
2
4
0
5
0
6
0
7
0
8
0
9
0
10
0
11
0
12
0
13
0
14
0
15
0
16
0
17
12
18
48
19
176
20
444
21
420
22
2124
23
8056
24
12944
[1,2,2,0,0,0,0,0,0,0,0,0,0,0,0,0,12,48,176,444, 420,2124,8056,12944]
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Last modified August 10 17:16 EDT 2024. Contains 375058 sequences. (Running on oeis4.)