http://www.perlmonks.org?node_id=188405

$}=1|1<<pop;print($"x$},(map$_?$=:$"x2,@;), $/),@;=(1,map$;[$_]^$;[-$_],1..@;)while$}--
This little program draws the sierpinski triangle fractal. Specify the size on the command line (should be about 5 depending on your screen size)

--MrNobo1024
s]]HrLfbfe|EbBibmv]e|s}w}ciZx^RYhL}e^print