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A279937 as a simple table

na(n)
01
111
21
3111
41001
511111
6100001
71100111
810111001
9101001111
101111110001
1110000010111
12110101101001
131001000111111
1411101110000001
151110011000111
161100011111011001
17101000000001111
18111011111111110001
1911100000000010111
2011000111000101101001

[1,11,1,111,1001,11111,100001,1100111,10111001,
 101001111,1111110001,10000010111,110101101001,
 1001000111111,11101110000001,1110011000111,
 1100011111011001,101000000001111,
 111011111111110001,11100000000010111,
 11000111000101101001]