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