[0xDEAD10CC]

Not necessarily any attempt at golf but here is an entry in C:

Code:

#include <stdio.h> #define MAX_OUT 200 int main(void) { int i = 1, j, k; char buf[MAX_OUT + 1] = { 0 }; buf[0] = '0'; for (;;) { k = i; for (j = 0; j < k; ++j) { buf[i] = buf[j] ^ 1; if (++i == MAX_OUT) goto end; } } end: buf[MAX_OUT] = 0; puts(buf); return 0; }