\[\frac{2}{\pi}\int_{0}^{\ifrac{\pi}{2}}\cosh\left(2h\sin z\sin t\right)%
\operatorname{ce}_{2n}\left(t,h^{2}\right)\,\mathrm{d}t=\frac{A_{0}^{2n}(h^{2}%
)}{\operatorname{ce}_{2n}\left(0,h^{2}\right)}\operatorname{ce}_{2n}\left(z,h^%
{2}\right),\]