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A089422
as a simple table
n
a(n)
0
1
1
1
2
2
3
3
4
6
5
8
6
10
7
12
8
14
9
16
10
18
11
20
12
22
13
24
14
26
15
28
16
30
17
32
18
34
19
36
20
38
[1,1,2,3,6,8,10,12,14,16,18,20,22,24,26,28,30,32, 34,36,38]