Five Consecutive Blocks(FCB)
What are five consecutive blocks(FCB)?
FCB are one geometric graph which was arranged by five cubes side by side. See the following examples:
Think about it.How many kinds of FCB can you find?(If the graph is overlapped after revolving or they are symmetrical,we'll view them as the same one.See the following examples.)
Next,we'll use FCB to make a fence.
As the following graph shows,we can have 109 squares.
Try it yourself!