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A280833 as a simple table

na(n)
01
11
211
31000
41
5111101
6111
711110000
810111
91111011100
10110001
11111110000101
1210111
1311111111011000
141100011
151111111100001000
16101001001
17111111110111001001
181100001001
1911111111100001001001
20101001001
211111111111110111001001
2211000001001

[1,1,11,1000,1,111101,111,11110000,10111,
 1111011100,110001,111110000101,10111,
 11111111011000,1100011,1111111100001000,101001001,
 111111110111001001,1100001001,
 11111111100001001001,101001001,
 1111111111110111001001,11000001001]