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A212661
as a simple table
n
a(n)
3
0
4
0
5
1
6
2
7
4
8
5
9
7
10
9
11
12
12
16
13
20
14
23
15
26
16
30
17
35
18
41
19
48
20
52
21
57
22
63
23
70
24
78
25
87
26
93
[0,0,1,2,4,5,7,9,12,16,20,23,26,30,35,41,48,52,57, 63,70,78,87,93]