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A345443
as a simple table
n
a(n)
1
2
2
4
3
5
4
6
5
8
6
9
7
10
8
11
9
12
10
14
11
15
12
16
13
17
14
18
15
19
16
20
17
22
18
22
19
24
20
25
21
26
22
27
23
28
24
29
25
30
26
32
27
32
[2,4,5,6,8,9,10,11,12,14,15,16,17,18,19,20,22,22, 24,25,26,27,28,29,30,32,32]