\[ y(x) \left (4 k x-4 m^2-x^2+1\right )+4 x^2 y''(x)=0 \] ✓ Mathematica : cpu = 0.0158697 (sec), leaf count = 20
\[\{\{y(x)\to c_1 M_{k,m}(x)+c_2 W_{k,m}(x)\}\}\] ✓ Maple : cpu = 0.151 (sec), leaf count = 17
\[\{y \left (x \right ) = c_{1} \WhittakerM \left (k , m , x\right )+c_{2} \WhittakerW \left (k , m , x\right )\}\]