delta=0.25 k=2: min T* +0.04419 (a=0.7) pair spacings [0.849]
delta=0.25 k=4: min T* -0.05270 (a=0.8) pair spacings [0.895 0.927 0.896]
delta=0.25 k=6: min T* -0.07078 (a=0.8) pair spacings [0.904 0.943 0.948 0.943 0.903]
delta=0.25 k=8: min T* -0.06059 (a=0.9) pair spacings [0.906 0.948 0.957 0.959 0.957 0.948 0.906]
