Search: id:A057984
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%I A057984
%S A057984 0,1,2,8,78,349,383,13932,30452,252992198,364873753,850627701,914514429,
%T A057984 17493745212,471008431072,1027221839335,14568535208344
%N A057984 These numbers are the record number of steps for the numbers in A057983 
               to reach the top of the deck in Guy's shuffle (see A035485).
%C A057984 See A057983 for the numbers that take these number of steps to reach 
               the top of the deck. Gale gives a(12) as 21879255397 (incorrect).
%D A057984 D. Gale, Tracking the Automatic Ant and Other Mathematical Explorations, 
               Springer, 1998, chapter 5.
%D A057984 D. Gale, Mathematical Entertainments: "Careful Card-Shuffling and Cutting 
               Can Create Chaos," The Mathematical Intelligencer, vol. 14, no. 1, 
               1992, pages 54-56.
%e A057984 In Guy's shuffle, 4 takes 8 shuffles to reach the top, no smaller number 
               takes more shuffles, so 8 is in the sequence.
%Y A057984 Cf. A035485, A035490, A035493, A035494, A057983, A060750-A060752.
%Y A057984 A057984 = A035490(A057983).
%Y A057984 Sequence in context: A132039 A002668 A093062 this_sequence A071254 A063528 
               A073561
%Y A057984 Adjacent sequences: A057981 A057982 A057983 this_sequence A057985 A057986 
               A057987
%K A057984 hard,nonn
%O A057984 0,3
%A A057984 Jud McCranie (j.mccranie(AT)comcast.net), Oct 24 2000

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