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A358805
as a simple table
n
a(n)
1
4
2
5
3
7
4
11
5
12
6
14
7
18
8
28
9
30
10
62
11
135
12
153
13
275
14
584
15
630
16
1424
17
1493
18
4419
19
8492
20
10950
[4,5,7,11,12,14,18,28,30,62,135,153,275,584,630, 1424,1493,4419,8492,10950]