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Let a_{0},a_{1},a_{2},\ldots be an increasing sequence of nonnegative integers such that every nonnegative integer can be expressed uniquely in the form a_{i}+2a_{j}+4a_{k}, where i,j and k are not necessarily distinct. Determine a_{1998}.

Slični zadaci

#NaslovOznakeRj.KvalitetaTežina
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