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A083459 as a simple table

na(n)
12
233
37777
4100001
510000000001
61000000000000001
7100000000000000000001
810000000000000000000000001
91000000000000000000000000000001

[2,33,7777,100001,10000000001,1000000000000001,
 100000000000000000001,10000000000000000000000001,
 1000000000000000000000000000001]