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A181012
as a simple table
n
a(n)
1
1
2
0
3
0
4
1
5
1
6
11
7
127
8
2483
9
104111
10
9617529
11
2133903810
12
1214165065307
13
1855490065115456
[1,0,0,1,1,11,127,2483,104111,9617529,2133903810, 1214165065307,1855490065115456]