This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A073096 #8 Mar 30 2012 18:39:05 %S A073096 6,6,18,258,65538,4294967298,18446744073709551618, %T A073096 340282366920938463463374607431768211458, %U A073096 115792089237316195423570985008687907853269984665640564039457584007913129639938 %N A073096 Maximal element in continued fraction for s(n) = sum( k>=n,1/2^(2^k) ). %F A073096 a(0)=6; for n>0 a(n)=2^(2^n)+2. %F A073096 a(n) = A063486(n)-3 for n>0. - _R. J. Mathar_, Apr 22 2007 %e A073096 Continued fraction expansion of 1/2^(2^5)+1/2^(2^6)+1/2^(2^7)+...is [0, 4294967295, 4294967298, 4294967296, 4294967296,... ] where the maximum element is 4294967298, hence a(5)=4294967298 %Y A073096 Cf. A007400 for case n=0. %K A073096 nonn %O A073096 0,1 %A A073096 _Benoit Cloitre_, Aug 18 2002