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A248349
as a simple table
n
a(n)
1
4
2
11
3
17
4
23
5
26
6
79
7
82
8
221
9
526
10
821
11
1204
12
5392
13
13139
14
35879
15
60991
16
77669
[4,11,17,23,26,79,82,221,526,821,1204,5392,13139, 35879,60991,77669]