\[\frac{z^{2}(n+\mu-\tfrac{1}{2})\left((n+\mu+\tfrac{1}{2})^{2}-\kappa^{2}\right%
)}{(n+\mu)(n+\mu+\tfrac{1}{2})(n+\mu+1)}{y(n+1)}+16\left((n+\mu)^{2}-\tfrac{1}%
{2}\kappa z-\tfrac{1}{4}\right)y(n)\\
-16\left((n+\mu)^{2}-\tfrac{1}{4}\right)y(n-1)=0,\]