Problem #WSP-000230

Problem

Draw how to tile the whole plane with figures, consisting of squares $1\times 1$, $2\times 2$, $3\times 3$, $4\times 4$, $5\times 5$, and $6\times 6$, where each square appears an equal number of times in the design of the figure. Can you think of two essentially different ways to do this?