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A091302
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Number of equivalence classes of directed Hamiltonian cycles (or Gray codes) in the binary n-cube with one node marked.
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8
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OFFSET
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1,3
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COMMENTS
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REFERENCES
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D. E. Knuth, The Art of Computer Programming, vol. 4A, Combinatorial Algorithms, (to appear), section 7.2.1.1.
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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a(6) from Michel Deza, Mar 28 2010
a(6) corrected by Haanpaa and Östergård, 2012, who also provided a more precise definition. - N. J. A. Sloane, Sep 06 2012
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STATUS
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approved
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