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<boily> learn M&ndash;rdalsj&ouml;kull is a draconic volcano harbouring the secret KATL base.
author HackBot
date Fri, 14 Feb 2014 00:10:05 +0000
parents 1baee8e6ee55
children
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import Data.List(inits);main = let p = 1 : zipWith (+) (map (*4) p) (map (sum . zipWith (*) p . reverse) (inits p)) in print $ p !! 1000