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A136434
as a simple table
n
a(n)
0
0
1
-2
2
2
3
18
4
52
5
110
6
198
7
322
8
488
9
702
10
970
11
1298
12
1692
13
2158
[0,-2,2,18,52,110,198,322,488,702,970,1298,1692, 2158]