1: 0 00 000 0000
    2: 0 00 000 0001
    3: 0 00 000 0011
    4: 0 00 000 0111
    5: 0 00 000 1111
    6: 0 00 001 0011
    7: 0 00 001 0100
    8: 0 00 001 0101
    9: 0 00 001 0111
   10: 0 00 001 1100
   11: 0 00 001 1101
   12: 0 00 001 1111
   13: 0 00 011 0110
   14: 0 00 011 0111
   15: 0 00 011 1010
   16: 0 00 011 1011
   17: 0 00 011 1110
   18: 0 00 011 1111
   19: 0 00 111 1110
   20: 0 00 111 1111
   21: 0 01 011 0111
   22: 0 01 011 1000
   23: 0 01 011 1001
   24: 0 01 011 1011
   25: 0 01 011 1111
   26: 0 01 100 1111
   27: 0 01 101 1100
   28: 0 01 101 1101
   29: 0 01 101 1111
   30: 0 01 111 1110
   31: 0 01 111 1111
   32: 0 11 110 1111
   33: 0 11 111 1111
   34: 1 11 111 1111
Total number of minimal graphs: 34