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A285911 as a simple table

na(n)
01
11
2110
3111
410100
51111
611000
711111
8111010000
9101111111
1010101100000
111111111
12101000000
13110111111111
14111000110000000
1511100111111111
1611101110100000000
1711000111111111111
181101111011000000000
191101111011111111111
20101100011010000000000

[1,1,110,111,10100,1111,11000,11111,111010000,
 101111111,10101100000,1111111,101000000,
 110111111111,111000110000000,11100111111111,
 11101110100000000,11000111111111111,
 1101111011000000000,1101111011111111111,
 101100011010000000000]