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Apopuli.155 net.math utzoo!decvax!ucbvax!G:shallit Wed Apr 21 10:22:30 1982 A Number Theory Problem Let n be a positive integer, and consider the C(2n,n) subsets of n elements chosen from 1,2, ... 2n. What is the expected value of the lcm of a subset, assuming each subset equally likely? /Jeff Shallit, Department of Mathematics, UC Berkeley, CA 94720

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