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 A195539 #7 Mar 30 2012 18:57:48 %S A195539 12,35,408,1189,13860,40391,470832,1372105,15994428,46611179, %T A195539 543339720,1583407981,18457556052,53789260175,627013566048, %U A195539 1827251437969,21300003689580,62072759630771,723573111879672,2108646576008245,24580185800219268 %N A195539 Numerators b(n) of Pythagorean approximations b(n)/a(n) to sqrt(8). %C A195539 See A195500 for discussion and list of related sequences; see A195538 for Mathematica program. %C A195539 Conjecture: a(n) = +34*a(n-2) -a(n-4) with a(2n+1) = A000129(4n+4), a(2n)=A046176(n+1). - R. J. Mathar, Sep 21 2011 %Y A195539 Cf. A195500, A195538, A195540. %K A195539 nonn %O A195539 1,1 %A A195539 _Clark Kimberling_, Sep 20 2011