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A106745
as a simple table
n
a(n)
1
5
2
6
3
7
4
12
5
21
6
25
7
300
8
305
9
600
10
689
11
742
12
1418
13
1547
14
1744
15
5275
16
6355
17
7477
18
15312
19
16772
20
33047
[5,6,7,12,21,25,300,305,600,689,742,1418,1547, 1744,5275,6355,7477,15312,16772,33047]