- 114 - Investigating the number of ways to fill a row with separated blocks that are at least three units long
- 115 - Finding a generalisation for the number of ways to fill a row with separated blocks
- 116 - Investigating the number of ways of replacing square tiles with one of three coloured tiles
- 117 - Investigating the number of ways of tiling a row using different-sized tiles
These all flow from 114, and the secret there is to use recursion to try to fill the space to the right. Don’t forget to memoize the recursion function.
