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A010418
as a simple table
n
a(n)
1
0
2
1
3
4
4
6
5
7
6
9
7
16
8
19
9
24
10
25
11
28
12
30
13
36
14
39
15
42
16
43
17
45
18
49
19
54
20
55
[0,1,4,6,7,9,16,19,24,25,28,30,36,39,42,43,45,49, 54,55]