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Search: id:A160048
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| A160048 |
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Numerator of the Harary number for the path graph P_n. |
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+0
2
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| 0, 2, 5, 26, 77, 87, 223, 962, 4609, 4861, 55991, 58301, 785633, 811373, 835397, 3431678, 29889983, 30570663, 197698279, 201578155, 41054655, 13920029, 325333835, 990874363, 25128807667, 25472027467, 232222818803, 235091155703
(list; graph; listen)
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OFFSET
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1,2
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LINKS
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Eric Weisstein's World of Mathematics, Harary Index
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EXAMPLE
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0, 2, 5, 26/3, 77/6, 87/5, 223/10, 962/35, 4609/140, 4861/126, ...
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CROSSREFS
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Cf. A160049.
Sequence in context: A120767 A051771 A008318 this_sequence A019047 A045903 A090878
Adjacent sequences: A160045 A160046 A160047 this_sequence A160049 A160050 A160051
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KEYWORD
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nonn
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AUTHOR
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E. W. Weisstein (eric(AT)weisstein.com), Apr 30, 2009
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