Search: id:A123481
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%I A123481
%S A123481 2,3,7,9,27,230631,626331,837799,1723519,3732423,6649279,8400511
%N A123481 Record n for the sequence A006666(n)/log(n), for n > 1; i.e. the n at 
               which the number of steps to 1 for the halving-Collatz iteration 
               divided by log(n) sets a new maximum.
%C A123481 These numbers (for n > 2, at least) are called "Abby-Normal" numbers 
               by Dominici in the referenced paper (definition 21); 2 is included 
               here to agree with the RECORDS transform convention. [From D. S. 
               McNeil (d.mcneil(AT)qmul.ac.uk), Mar 26 2009]
%D A123481 D. Dominici, Working with 2s and 3s, submitted, 2007.
%H A123481 D. Dominici, <a href="http://arXiv.org/abs/0704.1057">Abby-Normal numbers</
               a>.
%Y A123481 Sequence in context: A046152 A057239 A024541 this_sequence A107861 A109800 
               A152136
%Y A123481 Adjacent sequences: A123478 A123479 A123480 this_sequence A123482 A123483 
               A123484
%K A123481 nonn
%O A123481 1,1
%A A123481 Diego Dominici (dominicd(AT)newpaltz.edu), Apr 16 2007
%E A123481 It would be nice to have a more explicit definition! - N. J. A. Sloane 
               (njas(AT)research.att.com), Apr 21 2007
%E A123481 Definition edited by D. S. McNeil (d.mcneil(AT)qmul.ac.uk), Mar 26 2009
%E A123481 Extended by D. S. McNeil (d.mcneil(AT)qmul.ac.uk), Mar 26 2009

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