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A098901
as a simple table
n
a(n)
1
1
2
2
3
3
4
4
5
5
6
7
7
8
8
9
9
10
10
11
11
13
12
14
13
15
14
16
15
17
16
19
17
22
18
23
19
25
20
26
21
29
22
31
23
32
24
33
25
34
26
35
[1,2,3,4,5,7,8,9,10,11,13,14,15,16,17,19,22,23,25, 26,29,31,32,33,34,35]