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Search: id:A054004
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| A054004 |
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Numbers n such that n and n+1 have the same number and sum of divisors. |
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+0
5
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| 14, 1334, 1634, 2685, 33998, 42818, 64665, 84134, 109214, 122073, 166934, 289454, 383594, 440013, 544334, 605985, 649154, 655005, 792855, 1642154, 2284814, 2305557, 2913105, 3571905, 3682622, 4701537, 5181045, 6431732
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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T. D. Noe, Table of n, a(n) for n=1..298
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EXAMPLE
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divisors of 14 = {1, 2, 7, 14}, divisors of 15 = {1, 3, 5, 15}, both have four divisors and sum=24
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CROSSREFS
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Cf. A000005, A000203, A002961, A005237, A053249, A054005, A054006, A054007.
Sequence in context: A104226 A132504 A137603 this_sequence A131582 A060614 A134814
Adjacent sequences: A054001 A054002 A054003 this_sequence A054005 A054006 A054007
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KEYWORD
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nonn
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AUTHOR
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Asher Auel (asher.auel(AT)reed.edu) Jan 12, 2000
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EXTENSIONS
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More terms from Jud McCranie (j.mccranie(AT)comcast.net), Jun 02 2000
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