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A128601 a(n) = the denominator of the continued fraction [1;floor(n/(n-1)),floor(n/(n-2)),...,floor(n/1)]. 2

%I #9 Sep 16 2015 04:50:38

%S 1,2,4,13,27,107,197,691,1745,5716,10126,55634,97532,293694,851363,

%T 3209923,5516821,25655598,43801187,194256443,522900074,1451913673,

%U 2455573078,15955207491,33005125266,89673108924,231135972059

%N a(n) = the denominator of the continued fraction [1;floor(n/(n-1)),floor(n/(n-2)),...,floor(n/1)].

%t Table[Denominator[FromContinuedFraction[Table[Floor[n/(n-i)],{i,0,n-1}]]],{n,1,30}] (* _Stefan Steinerberger_, May 05 2007 *)

%Y Cf. A128599, A128600.

%K frac,nonn

%O 1,2

%A _Leroy Quet_, Mar 12 2007

%E More terms from _Stefan Steinerberger_, May 05 2007

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Last modified April 20 00:03 EDT 2024. Contains 371798 sequences. (Running on oeis4.)