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A182939
as a simple table
n
a(n)
0
1
1
1
2
2
3
1
4
3
5
5
6
4
7
3
8
3
9
6
10
9
11
8
12
10
13
11
14
12
15
11
16
12
17
11
18
12
19
14
20
14
21
14
22
16
23
18
[1,1,2,1,3,5,4,3,3,6,9,8,10,11,12,11,12,11,12,14, 14,14,16,18]