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A016103 as a simple table

na(n)
01
115
2151
31275
49751
570035
6481951
73216795
820991751
9134667555
10852639151
115343198315
1233212784151
13205111785075
141260114546751
157708980203835
1646999640806951
17285743822630595
181733261544204751

[1,15,151,1275,9751,70035,481951,3216795,20991751,
 134667555,852639151,5343198315,33212784151,
 205111785075,1260114546751,7708980203835,
 46999640806951,285743822630595,1733261544204751]