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Pop. of Isle of Man (89,400) is 250 x Number of ways a travelling salesman can visit six towns (and return home) (360 )
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Other land in Taiwan (2011) (27,810 km^2)
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"This is a fun and riveting book. Written in an accessible and engaging way, it is unputdownable." Frost Magazine
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Click here for Podcast: Andrew Elliott interviewed for New Books Network.