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A143279
as a simple table
n
a(n)
1
0
2
1
3
2
4
3
5
23
6
27
7
33
8
63
9
158
10
278
11
290
12
351
13
471
14
797
15
8462
16
28793
17
266030
[0,1,2,3,23,27,33,63,158,278,290,351,471,797,8462, 28793,266030]