This site is now andyfrost.xyz, (originally it has been 15711.org, if-prime.org, and andyfrostglassandart.eu) – This site is about my interest in number patterns, science, creativity and my art.
Please see the various folders/directories on the menu page by selecting the 3 line symbol top right: - which are Home, Patterns, Paintings, Stained Glass, Sketches, and not forgetting Blue…