Sp8 blocks

Block Sizes in Compact Inner Class:
         PSO(9)  PSO(8,1)  PSO(7,2)  PSO(6,3)  PSO(5,4)
Sp(4)    0       0         0         0         1
Sp(3,1)  0       0         0         0         16
Sp(2,2)  0       0         0         0         42
Sp(8,R)  1       9         48        144       258