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Search: id:A097323
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| A097323 |
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One sixth of the unitary sociable numbers. |
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+0
2
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| 5, 247, 403, 4030, 5873, 43970, 65955, 78883, 116355, 127270, 368671, 372259
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Unfortunately the next term is not an integer, so this sequence is no longer of interest. - N. J. A. Sloane (njas(AT)research.att.com), Nov 07 2006
Next term would be A000173(13)/6=172459210/6 but this is not an integer. Others unitary-sociable numbers which are not divisible by 6 are: 209524210 = 2.5.7.19.263.599, 1799281330 = 2.5.7.11.139.16811, 7009279550 = 2.5^2.7.13.19.89.911, 111375706442 = 2.7.11.13.59.727.1297,... - Herman Jamke (hermanjamke(AT)fastmail.fm), Nov 01 2006
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LINKS
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D. Moews, Perfect, amicable and sociable numbers
J. O. M. Pedersen, Tables of Aliquot Cycles
E. Weisstein, Unitary Sociable Numbers
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CROSSREFS
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Equals A000173(n)/6.
Sequence in context: A142732 A085115 A144999 this_sequence A166943 A125533 A068727
Adjacent sequences: A097320 A097321 A097322 this_sequence A097324 A097325 A097326
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KEYWORD
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nonn,fini,full
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AUTHOR
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Ralf Stephan, Aug 09 2004
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