Fraenkel word: Difference between revisions

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A '''Fraenkel word''' over ''n'' letters <math>\mathbf{0}, \mathbf{1}, ..., (\mathbf{n-1})</math> is defined recursively by
In combinatorics on words, '''Fraenkel word''' over ''n'' letters <math>\mathbf{0}, \mathbf{1}, ..., (\mathbf{n-1})</math> is defined recursively by


<math>\displaystyle{
<math>\displaystyle{