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A069617 as a simple table

na(n)
15
253
3353
43533
533533
63353321
7113353321
81133533213
9101133533213
1010113353321311
11310113353321311
123101133533213117
13143101133533213117
1414310113353321311739
15314310113353321311739
16314310113353321311739103

[5,53,353,3533,33533,3353321,113353321,1133533213,
 101133533213,10113353321311,310113353321311,
 3101133533213117,143101133533213117,
 14310113353321311739,314310113353321311739,
 314310113353321311739103]