;"4 3" ~])*1\+{[]+*{*}*}* #Ilmari Karonen's 18-character program
13407807929942597099574024998205846127479365820592393377723561443721764030073546976801874298166903427690031858186486050853753882811946569946433649006084096
The brand new service which powers Ideone!
Widget for compiling and running the source code in a web browser!