This is very similar to the Problem 14 on Project Euler [1]. Should you really want a nice solution in Haskell, and noting that this is a big spoiler, there are some on the wiki [2]. But I highly recommend you to try coding your own solutions before looking at the site =).
Cheers! [1] http://projecteuler.net/index.php?section=problems&id=14 [2] http://www.haskell.org/haskellwiki/Euler_problems/11_to_20#Problem_14 -- Felipe. _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe