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A052992 as a simple table

na(n)
01
11
25
35
421
521
685
785
8341
9341
101365
111365
125461
135461
1421845
1521845
1687381
1787381
18349525
19349525
201398101
211398101
225592405
235592405
2422369621
2522369621
2689478485
2789478485
28357913941
29357913941
301431655765
311431655765
325726623061
335726623061

[1,1,5,5,21,21,85,85,341,341,1365,1365,5461,5461,
 21845,21845,87381,87381,349525,349525,1398101,
 1398101,5592405,5592405,22369621,22369621,
 89478485,89478485,357913941,357913941,1431655765,
 1431655765,5726623061,5726623061]