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Mathematische Annalen

, Volume 143, Issue 2, pp 109–110 | Cite as

A note on the number of functional digraphs

  • Ronald C. Read
Article

References

  1. [1]
    Davis, R. L.: The number of structures of finite relations. Proc. Am. Math. Soc.4, 486–495 (1953).Google Scholar
  2. [2]
    Harary, F.: The number of functional digraphs. Math. Ann.138, 203–210 (1959).Google Scholar
  3. [3]
    Hardy, G. H., andE. M. Wright: An introduction to the theory of numbers. Oxford 1945.Google Scholar

Copyright information

© Springer-Verlag 1961

Authors and Affiliations

  • Ronald C. Read
    • 1
  1. 1.KingstonJamaica

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