\[
\boxed{
{x}^{2}{\it d4y} \left( x \right) + \left( 2\,n-2\,\nu+4 \right) x{\frac {{\rm d}^{3}}{{\rm d}{x}^{3}}}y \left( x \right) + \left( n-\nu+1 \right)  \left( n-\nu+2 \right) {\frac {{\rm d}^{2}}{{\rm d}{x}^{2}}}y \left( x \right) -1/16\,{b}^{4}y \left( x \right) =0}
\]