A Simple Derivation about the Number of Combinations without Unit Separation |
Received:March 07, 1985 |
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Abstract: |
Let f(n, k) denote the number of ways of selecting k objects from n objects arrayed in a line with no two selected having unit separation. Konvalina has proved the following formula |
Citation: |
DOI:10.3770/j.issn:1000-341X.1988.01.009 |
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