Spin9 blocks

Block Sizes in Compact Inner Class:
           PSp(4)  PSp(3,1)  PSp(2,2)  PSp(8,R)
Spin(9)    0       0         0         1
Spin(8,1)  0       0         0         6
Spin(7,2)  0       0         0         48
Spin(6,3)  0       0         0         96
Spin(5,4)  1       16        39        192