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A350581
as a simple table
n
a(n)
1
1
0
0
-1
4
-2
4
-3
7
-4
0
-5
0
-6
5
-7
8
-8
5
-9
0
-10
8
-11
1
-12
1
-13
9
[1,0,4,4,7,0,0,5,8,5,0,8,1,1,9]