j1j2j31j3j2=-1J+1⁢2⁢j2⁢j2+1+j3⁢j3+1-j1⁢j1+12⁢j2⁢2⁢j2+1⁢2⁢j2+2⁢2⁢j3⁢2⁢j3+1⁢2⁢j3+212.