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A034890
as a simple table
n
a(n)
1
1
2
2
3
3
4
4
5
6
6
6
7
9
8
11
9
14
10
16
11
20
12
23
13
27
14
31
15
35
16
43
17
47
18
55
19
61
20
70
21
78
22
88
23
98
24
111
25
123
[1,2,3,4,6,6,9,11,14,16,20,23,27,31,35,43,47,55, 61,70,78,88,98,111,123]