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Search: id:A135831
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| A135831 |
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Independence number of commuting graph of symmetric group S_n. |
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+0
2
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OFFSET
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0,4
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COMMENT
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The graph is empty for n = 0, 1 and 2, so a(n) = 0 by convention (or should it be 1?).
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REFERENCES
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A. Iranmanesh and A. Jafarzadeh, On the commuting graph associated with the symmetric and alternating groups, J. Algebra and Applic., 7 (2008), 129-146.
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CROSSREFS
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Sequence in context: A034730 A095127 A006342 this_sequence A015796 A034717 A001673
Adjacent sequences: A135828 A135829 A135830 this_sequence A135832 A135833 A135834
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Mar 06 2008
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