I was inspired by "Prime Number Pattern P Mod 40" by Jason Padgett. Padgett was mugged in 2002, sustaining a head injury that caused "a form of synesthesia and savant syndrome". Jason sees visions of geometrical and mathematical forms and illustrates them. Here's a video about him. As a fan of prime numbers myself and having been teaching them to my son, I decided to replicate his prime number dra