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A120828
as a simple table
n
a(n)
1
3
2
5
3
35
4
139
5
153
6
253
7
1053
8
2015
9
3703
10
6933
11
8173
12
11959
[3,5,35,139,153,253,1053,2015,3703,6933,8173, 11959]