A long time ago, I accidentally wrote this little Sierpinski triangle generator obfu, sier.pl, while playing golf IIRC:

#!/usr/bin/perl -l
s--@{[(gE^Ge)=~/[^g^e]/g]}[g^e]x((!!+~~g^e^g^e)<<pop).!gE-ge,
s-[^ge^ge]-s,,,,s,@{[(g^';').(e^'?')]},(G^'/').(E^'|')^Ge,ge,
print,s,(?<=/[^g^e])[^g^e][^g^e],$&^(G^'/').(E^'|')^gE,ge-ge
[download]

perl sier.pl 5
[download]

                               /\
                              /\/\
                             /\  /\
                            /\/\/\/\
                           /\      /\
                          /\/\    /\/\
                         /\  /\  /\  /\
                        /\/\/\/\/\/\/\/\
                       /\              /\
                      /\/\            /\/\
                     /\  /\          /\  /\
                    /\/\/\/\        /\/\/\/\
                   /\      /\      /\      /\
                  /\/\    /\/\    /\/\    /\/\
                 /\  /\  /\  /\  /\  /\  /\  /\
                /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
               /\                              /\
              /\/\                            /\/\
             /\  /\                          /\  /\
            /\/\/\/\                        /\/\/\/\
           /\      /\                      /\      /\
          /\/\    /\/\                    /\/\    /\/\
         /\  /\  /\  /\                  /\  /\  /\  /\
        /\/\/\/\/\/\/\/\                /\/\/\/\/\/\/\/\
       /\              /\              /\              /\
      /\/\            /\/\            /\/\            /\/\
     /\  /\          /\  /\          /\  /\          /\  /\
    /\/\/\/\        /\/\/\/\        /\/\/\/\        /\/\/\/\
   /\      /\      /\      /\      /\      /\      /\      /\
  /\/\    /\/\    /\/\    /\/\    /\/\    /\/\    /\/\    /\/\
 /\  /\  /\  /\  /\  /\  /\  /\  /\  /\  /\  /\  /\  /\  /\  /\
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
[download]

See Also

• Re^3: Name Space by sierpinski
• Re: Add "Image Miniatures" to your HTML (Fun References)

Updated: added See Also section.