2.1855   ODE No. 1855

1. Problem in Latex
2. Mathematica input
3. Maple input

$$y^{(n)}(x)-f\left(\frac{{\partial }^{n-2}y(x)}{\partial x^{n-2}}\right)=0$$ ✗ Mathematica : cpu = 0.0026398 (sec), leaf count = 0 , could not solve

DSolve[-f[D[y[x], {x, -2 + n}]] + Derivative[n][y][x] == 0, y[x], x]

✗ Maple : cpu = 0. (sec), leaf count = 0 , exception

unable to handle ODEs of undefined differential order