-3, \min\limits_{n\in Z}=-2, \\ n>-4,21, \min\limits_{n\in Z}=-4." alt="n \geq 6, \min\limits_{n\in Z}=6, \\ n \geq 3,24, \min\limits_{n\in Z}=4 \\ n \geq 3, \min\limits_{n\in Z}=3, \\ n>-3, \min\limits_{n\in Z}=-2, \\ n>-4,21, \min\limits_{n\in Z}=-4." align="absmiddle" class="latex-formula">