The Green functor structure of $RO(D_{2p})$-graded cohomology of a point

We compute the $RO(D_{2p})$-graded cohomology of a point with constant coefficient $\underset{‾}{\mathbb{Z}}$ together with its Green functor structure. Here $D_{2p}$ is the dihedral group with $p$ an odd prime. This result extends the additive computation of Kriz-Lu.