[2*(h)*(h-1)] < [(390644893234047643-3)/8+k*(k-1)/2] <= [2*(h)*(h+1)] , 2*(x)*(x+1)-y*(y-1)/2=(390644893234047643-3)/8 , x-(sqrt(32*x+1)+1)/2 <h<x+(sqrt(32*x+1)+1)/2,k=63790420+j*100000,j=25

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