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A280607 as a simple table

na(n)
01
111
21
3111
410001
5100111
61000001
710000111
8100000001
91000000111
1010000000001
11100000000111
121000000000001
1310000000000111
14100000000000001
151000000000000111
1610000000000000001
17100000000000000111
181000000000000000001
1910000000000000000111

[1,11,1,111,10001,100111,1000001,10000111,
 100000001,1000000111,10000000001,100000000111,
 1000000000001,10000000000111,100000000000001,
 1000000000000111,10000000000000001,
 100000000000000111,1000000000000000001,
 10000000000000000111]