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A066327 as a simple table

n a(n)
0 0
1 10
2 101
3 100
4 110
5 1001
6 1000
7 1010
8 1101
9 1100
10 1110
11 -1
12 -1
13 -1
14 -1
15 10001
16 10000
17 10010
18 10101
19 10100
20 10110
21 11001
22 11000
23 11010
24 11101
25 11100
26 11110
27 -1
28 -1
29 -1
30 -1
31 100001
32 100000
33 100010
34 100101
35 100100
36 100110
37 101001
38 101000
39 101010
40 101101
41 101100
42 101110
43 -1
44 -1
45 -1
46 -1
47 110001

[0,10,101,100,110,1001,1000,1010,1101,1100,1110,
 -1,-1,-1,-1,10001,10000,10010,10101,10100,10110,
 11001,11000,11010,11101,11100,11110,-1,-1,-1,-1,
 100001,100000,100010,100101,100100,100110,101001,
 101000,101010,101101,101100,101110,-1,-1,-1,-1,
 110001]

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Last modified February 2 02:30 EST 2023. Contains 359997 sequences. (Running on oeis4.)