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A261544 as a simple table

na(n)
01
11001
21001001
31001001001
41001001001001
51001001001001001
61001001001001001001
71001001001001001001001
81001001001001001001001001
91001001001001001001001001001
101001001001001001001001001001001
111001001001001001001001001001001001

[1,1001,1001001,1001001001,1001001001001,
 1001001001001001,1001001001001001001,
 1001001001001001001001,1001001001001001001001001,
 1001001001001001001001001001,
 1001001001001001001001001001001,
 1001001001001001001001001001001001]