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Search: id:A007110
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| A007110 |
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Number of connected labeled 2-regular oriented graphs with n nodes. (Formerly M5163)
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+0 1
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| 0, 0, 0, 0, 0, 24, 570, 27900, 1827630, 152031600, 15453811800, 1884214710000, 271711218933000, 45788138466285600, 8922341314806519600, 1991726163596104135200, 505133470313552174094000
(list; graph; listen)
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OFFSET
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0,6
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REFERENCES
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R. W. Robinson, personal communication.
R. W. Robinson, Numerical implementation of graph counting algorithms, AGRC Grant, Math. Dept., Univ. Newcastle, Australia, 1982.
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LINKS
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R. W. Robinson, Table of n, a(n) for n = 0..48
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CROSSREFS
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Sequence in context: A121905 A010561 A063816 this_sequence A007109 A077423 A059061
Adjacent sequences: A007107 A007108 A007109 this_sequence A007111 A007112 A007113
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KEYWORD
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nonn,nice
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AUTHOR
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njas
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