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Search: id:A069057
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| A069057 |
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Numbers n such that the numerator of sum(d|n,1/d)>2n. |
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+0
1
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| 36, 100, 144, 324, 392, 400, 576, 784, 800, 900, 968, 1296, 1352, 1575, 1600, 1936, 2304, 2450, 2500, 2704, 2916, 3136, 3600, 3872, 4356, 4624, 5184, 5408, 5776, 6050, 6272, 6400, 7744, 8100, 8450, 8464, 9216, 9248, 10000, 10404, 10816, 11552, 11664
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Many terms in the sequence are squares: 6^2,10^2,12^2,18^2,20^2,24^2,28^2,30^2,36^2,40^2,44^2,48^2,50^2...
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CROSSREFS
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Sequence in context: A072413 A131605 A063734 this_sequence A062703 A043438 A044223
Adjacent sequences: A069054 A069055 A069056 this_sequence A069058 A069059 A069060
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KEYWORD
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easy,nonn
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AUTHOR
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Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 07 2002
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