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A101538
as a simple table
n
a(n)
1
1
2
2
3
7
4
49
5
55
6
71
7
107
8
131
9
181
10
1099
11
1367
12
1604
13
5131
14
22681
[1,2,7,49,55,71,107,131,181,1099,1367,1604,5131, 22681]