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