\begin{align}
H=\begin{pmatrix}
\frac{1}{\sqrt{n}}&\frac{1}{\sqrt{n}}&\frac{1}{\sqrt{n}}&\frac{1}{\sqrt{n}}&\cdots&\frac{1}{\sqrt{n}}&\frac{1}{\sqrt{n}}
\\\frac{1}{\sqrt{2}}...