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A074024
as a simple table
n
a(n)
1
1
2
0
3
5
4
12
5
51
6
160
7
585
8
2016
9
7280
10
26112
11
95325
12
349180
13
1290555
14
4792320
[1,0,5,12,51,160,585,2016,7280,26112,95325,349180, 1290555,4792320]