Blokus is a fun game that involves placing different size/shape/color pieces on a board.
The pieces look like this:
Each piece has some number of squares in it. For instance, the image on top contains a piece with 4 squares, while the one below contains a piece with 5 squares.
How many unique pieces can you make from N squares?
For a couple examples, if N = 1, you can only make one unique piece. If N = 2, you also can only make one unique piece. If N = 3, you can make two unique pieces:
For N = 4, there are 5 possible unique pieces and N = 5, there are 12.