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A161761 as a simple table

na(n)
111
210101
3111010001
41111101000001
51111111111101000000000001
6111111111111111010000000000000001
71111111111111111101000000000000000001
81111111111111111111111111111101000000000000000000000000000001

[11,10101,111010001,1111101000001,
 1111111111101000000000001,
 111111111111111010000000000000001,
 1111111111111111101000000000000000001,
 11111111111111111111111111111010000000000000000000\
 00000000001]