Search: id:A126656
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%I A126656
%S A126656 1,2,5,13,27,62,125,266,538,1106,2213,4509,9019,18166,36365,73012,
%T A126656 146025,292658,585317,1171783,2343697,4689610,9379221,18763300,37526628,
%U A126656 75062278,150125100,300268507,600537015,1201111598,2402223197
%N A126656 a(1)=1; for n>1, a(n) = sum{k=1 to n-1} a(k) floor(n/k).
%H A126656 Leroy Quet, <a href="http://www.prism-of-spirals.net/">Home Page</a> 
               (listed in lieu of email address)
%F A126656 a(n) is asymptotic to c*2^n where c=1.1186567921399193608303756752855835542518061417771006467002421299046146.\
               .. [From Benoit Cloitre (benoit7848c(AT)orange.fr), Nov 10 2009]
%t A126656 f[l_List] := Block[{n = Length[l] + 1},Append[l, Sum[l[[k]]*Floor[n/k], 
               {k, n - 1}]]];Nest[f, {1}, 32] (*Chandler*)
%Y A126656 Sequence in context: A072921 A087250 A065301 this_sequence A026522 A122491 
               A002559
%Y A126656 Adjacent sequences: A126653 A126654 A126655 this_sequence A126657 A126658 
               A126659
%K A126656 nonn,new
%O A126656 1,2
%A A126656 Leroy Quet Feb 09 2007
%E A126656 Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Feb 11 2007

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