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A049624
as a simple table
n
a(n)
0
1
1
1
2
3
3
4
4
6
5
7
6
9
7
10
8
12
9
13
10
15
11
16
12
18
13
19
14
21
15
22
16
24
17
25
18
27
19
28
20
30
21
31
22
33
23
34
24
36
[1,1,3,4,6,7,9,10,12,13,15,16,18,19,21,22,24,25, 27,28,30,31,33,34,36]