Primewalk History
Inspiried by Ulam_spiral, Radic created primewalk in 2010.
The algorithm used to produce primewalk images is very simple. While counting from 1 to infinity, draw pixels north. Each time a prime number is encountered, change the draw direction clockwise.
Images are titled with a number indicating how many prime numbers it contains, and a number indicating how scaled the image is.
The center of each image is where drawing first occurs.