✗ Mathematica : cpu = 25.8071 (sec), leaf count = 0
DSolve[a*(-1 + E^y[x]) + x^2*Derivative[2][y][x] == 0,y[x],x]
, could not solve
DSolve[a*(-1 + E^y[x]) + x^2*Derivative[2][y][x] == 0, y[x], x]
✗ Maple : cpu = 0. (sec), leaf count = 0
dsolve(x^2*diff(diff(y(x),x),x)+a*(exp(y(x))-1)=0,y(x))
, result contains DESol or ODESolStruc