\[ \int 8 e^{e^{\frac {8}{5} x^5 (i \pi +\log (4))}+\frac {8}{5} x^5 (i \pi +\log (4))} x^4 (i \pi +\log (4)) \, dx \]
Optimal antiderivative \[ {\mathrm e}^{{\mathrm e}^{\frac {8 x^{5} \left (2 \ln \left (2\right )+i \pi \right )}{5}}} \]
command
integrate(8*x**4*(2*ln(2)+I*pi)*exp(8/5*x**5*(2*ln(2)+I*pi))*exp(exp(8/5*x**5*(2*ln(2)+I*pi))),x)
Sympy 1.10.1 under Python 3.10.4 output
\[ e^{e^{\frac {8 x^{5} \cdot \left (2 \log {\left (2 \right )} + i \pi \right )}{5}}} \]
Sympy 1.8 under Python 3.8.8 output
\[ \text {Timed out} \]________________________________________________________________________________________