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 A195611 #6 Mar 30 2012 18:57:48 %S A195611 3,481,2079,12797,1968639,8522241,52441603,8067484641,34924139039, %T A195611 214905676797,33060550087679,143119113262081,880683411072003, %U A195611 135482126191826401,586502091223866399,3609040403667391997,555205720073554501119 %N A195611 Numerators b(n) of Pythagorean approximations b(n)/a(n) to 4/5. %C A195611 See A195500 for discussion and list of related sequences; see A195580 for Mathematica program. %Y A195611 Cf. A195500, A195580, A195612. %K A195611 nonn %O A195611 1,1 %A A195611 _Clark Kimberling_, Sep 21 2011