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A068850 as a simple table

na(n)
161
2613
36131
4613141
561314101
6613141013
761314101333
8613141013339
961314101333909
106131410133390957
11613141013339095771
1261314101333909577103
136131410133390957710303
14613141013339095771030309
1561314101333909577103030903
166131410133390957710303090337

[61,613,6131,613141,61314101,613141013,
 61314101333,613141013339,61314101333909,
 6131410133390957,613141013339095771,
 61314101333909577103,6131410133390957710303,
 613141013339095771030309,
 61314101333909577103030903,
 6131410133390957710303090337]