the Occult and 666...

http://www.redicecreations.com/specialreports/2006/02feb/triquetra.html
There are all sorts of peculiar numbers & patterns out there. However, 666+and+the+occult is one big area all to it self.
http://www.whale.to/b/duke.html ,

http://countdowntozerotime.com/?s=666 ,

http://syncnotes.blogspot.ca/search?q=aleister+crowley ,

http://syncnotes.blogspot.ca/2014/12/the-occult-roots-of-jpl-and-nasa.html ,

666-etc.