SL6 blocks

Block Sizes in Compact Inner Class:
         PGL(3,H)   PGL(6,R)
SU(6)    0          1
SU(5,1)  0          21
SU(4,2)  0          120
SU(3,3)  15         215 

Block Sizes in Split Inner Class:
         PU(6)  PU(5,1)  PU(4,2)  PU(3,3)
SL(3,H)  0      0        0        15
SL(6,R)  1      21       120      130