$$\log{\left (\operatorname{atan}{\left (u \right )} \right )} \operatorname{atan}^{v}{\left (u \right )}$$
v 2
atan (u)*log (atan(u))
$$\log^{2}{\left (\operatorname{atan}{\left (u \right )} \right )} \operatorname{atan}^{v}{\left (u \right )}$$
v 3
atan (u)*log (atan(u))
$$\log^{3}{\left (\operatorname{atan}{\left (u \right )} \right )} \operatorname{atan}^{v}{\left (u \right )}$$