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Search: id:A135908
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| A135908 |
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Clique number of commuting graph of symmetric group S_n. |
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+0
1
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| 0, 0, 0, 2, 3, 5, 8, 11, 17, 26, 35, 53, 80, 107, 161, 242, 323, 485, 728, 971, 1457, 2186, 2915, 4373, 6560, 8747, 13121, 19682, 26243, 39365, 59048, 78731, 118097, 177146, 236195, 354293, 531440, 708587, 1062881, 1594322, 2125763, 3188645, 4782968, 6377291, 9565937
(list; graph; listen)
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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: A131787 A091498 A000511 this_sequence A056891 A065462 A062762
Adjacent sequences: A135905 A135906 A135907 this_sequence A135909 A135910 A135911
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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 07 2008
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