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A066230
as a simple table
n
a(n)
1
1
2
12
3
196
4
368
5
1696
6
30848
7
437745
8
2075648
9
8341504
10
33452032
11
34355150848
[1,12,196,368,1696,30848,437745,2075648,8341504, 33452032,34355150848]