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A007186
as a simple table
n
a(n)
1
2
2
6
3
11
4
26
5
51
6
106
7
111
8
113
9
261
10
286
11
1506
12
12666
13
15751
14
45356
15
76501
[2,6,11,26,51,106,111,113,261,286,1506,12666, 15751,45356,76501]