delta=0.20 k=4: min T* +0.06185 (a=0.8) pair spacings [0.916 0.935 0.917]
delta=0.20 k=6: min T* +0.08115 (a=0.9) pair spacings [0.921 0.949 0.956 0.949 0.921]
delta=0.20 k=8: min T* +0.11185 (a=0.8) pair spacings [0.926 0.954 0.965 0.967 0.964 0.954 0.925]
