\[ 4 x^2 y'(x)-4 x^3 y''(x)+4 x^4 y^{(3)}(x)-1=0 \] ✓ Mathematica : cpu = 0.0132387 (sec), leaf count = 44
\[\left \{\left \{y(x)\to \frac {c_1 x^2}{2}-\frac {c_2 x^2}{4}+\frac {1}{2} c_2 x^2 \log (x)-\frac {1}{36 x}+c_3\right \}\right \}\] ✓ Maple : cpu = 0.17 (sec), leaf count = 34
\[ \left \{ y \left ( x \right ) ={\frac {18\,{x}^{3}{\it \_C1}\,\ln \left ( x \right ) -1+ \left ( -9\,{\it \_C1}+18\,{\it \_C2} \right ) {x}^{3}+36\,{\it \_C3}\,x}{36\,x}} \right \} \]