$$26\quad 28\quad 28\quad 30\quad 30\quad 28\quad 32\quad 30\quad ?\quad ?$$
If I consider the sequence of odd terms, then it follows increasing by $2$ each time. So the first missing term is $34$. Also if I consider the sequence of even terms then it oscillates, so the $2$nd missing term is $28$.
Am I correct? If I am, then I am looking for another beautiful logic.