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A224082
as a simple table
n
a(n)
1
1
2
2
3
6
4
7
5
11
6
17
7
20
8
21
9
36
10
69
11
84
12
168
13
207
14
248
15
401
16
431
17
435
18
1468
19
4421
20
8949
[1,2,6,7,11,17,20,21,36,69,84,168,207,248,401,431, 435,1468,4421,8949]