values of the Dedekind zeta function of $\mathbb{Q}(\sqrt{5})$ at negative integers

As an example of the http://planetmath.org/node/8064parent entry, we exhibit a few values of the Dedekind zeta function $\zeta (s,K)$ associated to the number field $K=\mathbb{Q}(\sqrt{5})$. The following are the first few values of $\zeta (1-k,K)$ for $k\ge 2$ even ($\zeta (1-k,K)=0$ for odd $k$):