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A008841
as a simple table
n
a(n)
0
0
1
1
2
0
3
1
4
0
5
1
6
12
7
31
8
0
9
570361
10
1441440
11
207648650161
12
0
[0,1,0,1,0,1,12,31,0,570361,1441440,207648650161, 0]
