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A069597 as a simple table

na(n)
2101
31009
410007
5100003
61000003
710000019
8100000007
91000000007
1010000000019
11100000000003
121000000000039
1310000000000037
14100000000000031
151000000000000037
1610000000000000061
17100000000000000003

[101,1009,10007,100003,1000003,10000019,100000007,
 1000000007,10000000019,100000000003,1000000000039,
 10000000000037,100000000000031,1000000000000037,
 10000000000000061,100000000000000003]