Hello, everybody!
This is not a question but rather a challenge to have fun.
Using a combination of grey square tiles and oblong tiles chosen from: red tiles (measuring two units), green tiles (measuring three units), and blue tiles (measuring four units), it is possible to tile a row measuring five units in length in exactly fifteen different ways.
How many ways can a row measuring fifty units in length be tiled?
I'm posting this because challende can be solved in SQL in a really efficient and concise maner.
Oh, yes, only pure SQL solutions are accepted.
I'll post mine later today.