\[{{}_{7}F_{6}}\left({a,\frac{1}{2}a+1,b,c,d,f,-n\atop\frac{1}{2}a,a-b+1,a-c+1,a%
-d+1,a-f+1,a+n+1};1\right)=\frac{{\left(a+1\right)_{n}}{\left(a-b-c+1\right)_{%
n}}{\left(a-b-d+1\right)_{n}}{\left(a-c-d+1\right)_{n}}}{{\left(a-b+1\right)_{%
n}}{\left(a-c+1\right)_{n}}{\left(a-d+1\right)_{n}}{\left(a-b-c-d+1\right)_{n}%
}},\]