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A282420 as a simple table

na(n)
01
111
21
3111
411001
51111
6110001
710010111
8111111001
91111
101101110001
11100100010111
121110101111001
1311100001111
1411000101110001
151001010100010111
1611101111101111001
17100001110001111
18111101100011110001
1910001111101100010111
20111100000101101111001

[1,11,1,111,11001,1111,110001,10010111,111111001,
 1111,1101110001,100100010111,1110101111001,
 11100001111,11000101110001,1001010100010111,
 11101111101111001,100001110001111,
 111101100011110001,10001111101100010111,
 111100000101101111001]