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A030447
as a simple table
n
a(n)
1
1
2
0
3
4
4
2
5
30
6
32
7
274
8
403
9
2694
10
4604
11
27365
12
50777
13
282343
[1,0,4,2,30,32,274,403,2694,4604,27365,50777, 282343]