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A076679
as a simple table
n
a(n)
1
2
2
3
3
4
4
6
5
7
6
9
7
10
8
13
9
23
10
25
11
32
12
38
13
40
14
47
15
96
16
3442
17
4048
18
4522
19
4887
20
7033
21
9528
22
12915
23
31762
[2,3,4,6,7,9,10,13,23,25,32,38,40,47,96,3442,4048, 4522,4887,7033,9528,12915,31762]