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A005853
as a simple table
n
a(n)
7
1
8
1
9
1
10
1
11
2
12
3
13
4
14
8
15
15
16
16
17
24
18
33
19
52
20
80
21
120
22
176
23
253
[1,1,1,1,2,3,4,8,15,16,24,33,52,80,120,176,253]