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A064620
as a simple table
n
a(n)
1
1
2
2
3
3
4
5
5
4
6
7
7
11
8
6
9
13
10
17
11
10
12
19
13
9
14
8
15
23
16
29
17
14
18
15
19
31
20
22
21
37
22
41
23
12
24
43
25
25
26
26
[1,2,3,5,4,7,11,6,13,17,10,19,9,8,23,29,14,15,31, 22,37,41,12,43,25,26]