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A056209
as a simple table
n
a(n)
1
53
2
173
3
277
4
317
5
397
6
769
7
773
8
797
9
809
10
853
11
1009
12
1013
13
1093
14
1493
15
1613
16
1637
[53,173,277,317,397,769,773,797,809,853,1009,1013, 1093,1493,1613,1637]