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A187749
as a simple table
n
a(n)
0
17
1
20
2
24
3
27
4
31
5
33
6
35
7
40
8
41
9
42
10
44
11
49
12
50
13
54
[17,20,24,27,31,33,35,40,41,42,44,49,50,54]