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A218948
as a simple table
n
a(n)
0
1
1
1
2
1
3
1
4
2
5
3
6
5
7
6
8
13
9
19
10
22
11
27
12
40
13
54
[1,1,1,1,2,3,5,6,13,19,22,27,40,54]