Abstract
In connection with a previous paper, an expression is derived for the number of possibilities in whichn distinguishable elements can be distributed intom≤n classes, so that each class contains at least one element.
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Literature
Rashevsky, N. 1954. “Topology and Life. In Search of General Mathematical Principles in Biology and Sociology.”Bull. Math. Biophysics,16, 317–48.
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Rashevsky, N. Note on a combinatorial problem in topological biology. Bulletin of Mathematical Biophysics 17, 45–50 (1955). https://doi.org/10.1007/BF02481837
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DOI: https://doi.org/10.1007/BF02481837