Four-body function
- Failed to parse (SVG (MathML can be enabled via browser plugin): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle g_N^{(4)}(r_1,r_2,r_3,r_4)=\frac{g_N^{(3)}(r_1,r_2,r_3)g_N^{(3)}(r_1,r_2,r_4)g_N^{(3)}(r_2,r_3,r_4)g_N^{(3)}(r_1,r_3,r_4)}{g_{12}g_{13}g_{14}g_{23}g_{24}g_{34}}}