Let's define "snowflakey" pattern as
- Regular polygon
- surrounded by other regular polygons
- number of surrounding polygons equals to a number of angles of polygon in the middle
Here are two groups of snowflakeys:
Each snowflakey in the left group I consider "pretty" and each snowflakey in the right group I consider "not pretty".
What is "pretty" snowflakey? Would I consider pretty all snowflakies on the right side taken together?