A 2x2 digital display consists of 12 segments. You will create a shape by turning some of the segments on. Rules:
• At least one of the segments will be on.
• When multiple segments are on, those segments will form a connected shape.
How many different shapes can be created?
For example, for a square-shaped display with 4 segments, the answer would be 13.
1 shape with all segments on; 4 shapes for one, two or three turned on segments each.