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Search: id:A084337
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| A084337 |
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Rearrangement of natural numbers so that the successive ratios ( of the larger to the smaller term) are all distinct integers. a(m)/a(m-1)= a(k)/a(k-1) iff m = k ( assuming a(m) > a(m-1) otherwise the ratio a(m-1)/a(m) is to be considered). Priority is given to smallest number not included earlier than to the successive ratio that has not occurred earlier. |
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+0
1
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| 1, 2, 6, 24, 3, 15, 90, 5, 35, 315, 7, 70, 770, 10, 120, 4, 52, 728, 8, 128, 1920, 12, 204, 3876, 17, 340, 7140, 14, 308, 11, 253, 6072, 22, 550, 14300, 13, 351, 9, 261, 8091, 29, 928, 16, 528, 17952, 32, 1120, 20, 720, 18, 666, 25308, 19, 779, 32718, 21, 903, 39732
(list; graph; listen)
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OFFSET
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0,2
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COMMENT
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The sequence of successive ratios is 2/1,6/2,24/6,24/3,15/3,90/15,90/9,63/9,63/7,... or 2,3,4,8,5,6,10,7,9,...
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CROSSREFS
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Sequence in context: A086554 A110729 A007672 this_sequence A033642 A004154 A076126
Adjacent sequences: A084334 A084335 A084336 this_sequence A084338 A084339 A084340
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KEYWORD
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nonn
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AUTHOR
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Amarnath Murthy and Meenakshi Srikanth (amarnath_murthy(AT)yahoo.com), Jun 18 2003
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EXTENSIONS
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Corrected and extended by David Wasserman (wasserma(AT)spawar.navy.mil), Dec 15 2004
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