For fixed z and a1=1/4, b1`>=-11/2
For fixed z and a1=1/4, b1`=-11/2
For fixed z and a1=1/4, b1`=-9/2
For fixed z and a1=1/4, b1`=-7/2
For fixed z and a1=1/4, b1`=-5/2
For fixed z and a1=1/4, b1`=-3/2
For fixed z and a1=1/4, b1`=-1/2
For fixed z and a1=1/4, b1`=1/2
For fixed z and a1=1/4, b1`=3/2
For fixed z and a1=1/4, b1`=5/2
For fixed z and a1=1/4, b1`=7/2
For fixed z and a1=1/4, b1`=9/2
For fixed z and a1=1/4, b1`=11/2
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