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A195439
as a simple table
n
a(n)
1
3
2
5
3
7
4
8
5
10
6
16
7
23
8
26
9
32
10
37
11
64
12
89
13
149
14
173
15
251
16
307
17
317
18
956
19
30197
20
46058
[3,5,7,8,10,16,23,26,32,37,64,89,149,173,251,307, 317,956,30197,46058]