20  ENERGY = 1.4  > RA7680
    1 C       0    2    0    1
    2 A       1    3   17    2
    3 A       2    4    0    3
    4 G       3    5    0    4
    5 T       4    6    0    5
    6 G       5    7    0    6
    7 A       6    8    0    7
    8 T       7    9    0    8
    9 G       8   10    0    9
   10 G       9   11    0   10
   11 T      10   12    0   11
   12 G      11   13    0   12
   13 C      12   14    0   13
   14 G      13   15    0   14
   15 T      14   16    0   15
   16 T      15   17    0   16
   17 T      16   18    2   17
   18 G      17   19    0   18
   19 G      18   20    0   19
   20 T      19    0    0   20