#group: free  frags first [ 2^0   2^1   2^2   2^3   2^4   2^5   2^6   2^7   2^8   2^9   2^10  2^11  2^12  2^13  ]
#0    : 2774  16    8788  [ 8     3     6     4     7     9     6     9     3     0     0     0     0     0     ]
#1    : 18787 32    590   [ 17    9     10    13    21    7     12    7     8     0     6     2     1     0     ]
#2    : 2130  21    519   [ 2     6     9     8     12    3     9     5     2     0     0     0     0     0     ]
#3    : 3083  10    579   [ 3     4     4     4     7     5     3     2     3     1     1     0     0     0     ]
#4    : 1857  21    517   [ 11    13    11    6     10    3     5     3     1     1     0     0     0     0     ]
#5    : 3279  34    579   [ 19    22    18    19    25    1     6     1     2     1     1     0     0     0     ]
#6    : 16456 2     514   [ 0     2     1     2     1     1     2     1     1     1     1     1     1     1     ]
#7    : 28427 12    579   [ 1     3     3     3     6     2     1     4     4     2     1     2     3     1     ]