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A215755 Denominators of the continued fraction convergents of log_10(7). 1

%I #21 Aug 23 2013 15:02:54

%S 1,6,13,71,439,510,2455069,2455579,4910648,12276875,29464398,71205671,

%T 100670069,171875740,272545809,1807150594,9308298779,11115449373,

%U 931890596738,6534349626539,14000589849816,20534939476355,34535529326171,55070468802526,475099279746379,2430566867534421

%N Denominators of the continued fraction convergents of log_10(7).

%C 7^a(n) gets increasingly close to 10^(numerator of convergent).

%t Rest[Denominator[Convergents[Log[10,7],30]]] (* _Harvey P. Dale_, Aug 23 2013 *)

%o (PARI) default(realprecision, 21000); for(i=1,100,print(contfracpnqn(contfrac(log(7)/log(10),0,i))[2,1]))

%Y Cf. A046104, A073733.

%Y Numerators are in A215759.

%K nonn,frac

%O 1,2

%A _V. Raman_, Aug 23 2012

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)