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10 0 calculating n!/(n-k)! for k-permutations ( 2018-04-10 13:18:05 +0200 )
2 0 calculating n!/(n-k)! for k-permutations ( 2012-03-08 07:26:26 +0200 )
Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.