%I A019431
%S A019431 0,7,1,22,1,38,1,54,1,70,1,86,1,102,1,118,1,134,1,150,1,166,1,182,1,198,
%T A019431 1,214,1,230,1,246,1,262,1,278,1,294,1,310,1,326,1,342,1,358,1,374,1,390,
%U A019431 1,406,1,422,1,438,1,454,1,470,1,486,1,502,1,518,1,534,1,550,1,566,1,582
%N A019431 Continued fraction for tan(1/8).
%H A019431 Harry J. Smith, <a href="b019431.txt">Table of n, a(n) for n=0,...,20000</
               a>
%H A019431 G. Xiao, <a href="http://wims.unice.fr/~wims/en_tool~number~contfrac.en.html">
               Contfrac</a>
%e A019431 0.12565513657513096779267821... = 0 + 1/(7 + 1/(1 + 1/(22 + 1/(1 + ...)))) 
               [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 14 2009]
%o A019431 (PARI) { allocatemem(932245000); default(realprecision, 97000); x=contfrac(tan(1/
               8)); for (n=0, 20000, write("b019431.txt", n, " ", x[n+1])); } [From 
               Harry J. Smith (hjsmithh(AT)sbcglobal.net), Jun 14 2009]
%Y A019431 Cf. A161017 Decimal expansion. [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), 
               Jun 14 2009]
%Y A019431 Sequence in context: A028325 A119546 A050310 this_sequence A064051 A147385 
               A147347
%Y A019431 Adjacent sequences: A019428 A019429 A019430 this_sequence A019432 A019433 
               A019434
%K A019431 nonn,cofr
%O A019431 0,2
%A A019431 David W. Wilson (davidwwilson(AT)comcast.net)