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A350826
as a simple table
n
a(n)
1
1
2
1
3
0
4
0
5
3
6
0
7
13
8
64
9
235
10
1296
11
7013
12
41782
13
253420
14
1607418
15
10520883
16
70785653
17
488096844
[1,1,0,0,3,0,13,64,235,1296,7013,41782,253420, 1607418,10520883,70785653,488096844]