✗ Mathematica : cpu = 12.0681 (sec), leaf count = 0
DSolve[-(b*n*x^3) - a*y[x]^3 + x^(1 + 2*n)*Derivative[1][y][x] == 0,y[x],x]
, could not solve
DSolve[-(b*n*x^3) - a*y[x]^3 + x^(1 + 2*n)*Derivative[1][y][x] == 0, y[x], x]
✓ Maple : cpu = 0.046 (sec), leaf count = 32
dsolve(x^(2*n+1)*diff(y(x),x)-a*y(x)^3-b*x^(3*n) = 0,y(x))