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A131540
as a simple table
n
a(n)
0
0
1
4
2
46
3
157
4
222
5
220
6
2269
7
11019
8
18842
9
192918
10
192916
11
271979
12
1039316
13
7193133
14
14060686
15
97428976
[0,4,46,157,222,220,2269,11019,18842,192918, 192916,271979,1039316,7193133,14060686,97428976]