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A143015 as a simple table

na(n)
11
23
33
43
57
613
75
813
957
10223
115419
1217
13241
144192257
1516773121
1617
17241

[1,3,3,3,7,13,5,13,57,223,5419,17,241,4192257,
 16773121,17,241]