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A187013
as a simple table
n
a(n)
4
1
5
0
6
2
7
3
8
6
9
12
10
37
11
95
12
293
13
923
14
3086
15
10504
16
36954
17
131590
18
475793
[1,0,2,3,6,12,37,95,293,923,3086,10504,36954, 131590,475793]