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A365304
as a simple table
n
a(n)
1
0
2
1
3
9
4
73
5
333
6
1822
7
8043
8
28296
9
102042
10
338447
11
1054824
12
2569353
13
6237718
14
15947108
15
36179796
[0,1,9,73,333,1822,8043,28296,102042,338447, 1054824,2569353,6237718,15947108,36179796]