( u v + 1 ) ( u v − u − 2 v + 1 ) ( u v − 2 u − v + 1 ) u 3 / 2 v 3 / 2 {\displaystyle {\frac {(uv+1)(uv-u-2v+1)(uv-2u-v+1)}{u^{3/2}v^{3/2}}}}
