I gather that the OP also wants strings like: 
00011011111
00011101111
00011110111
00011111011
00011111101
00011111110
00110011111
00111001111
...

[download]
which your code didn't get around to. (And apparently, expecting to hold all results in memory before outputting them may be unrealistic.)

In reply to Re^2: One Zero variants_without_repetition by graff
in thread One Zero variants_without_repetition by thenetfreaker

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