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 A229760 #25 Oct 05 2014 22:40:53 %S A229760 2,6,3,9,3,2,0,2,2,5,0,0,2,1,0,3,0,3,5,9,0,8,2,6,3,3,1,2,6,8,7,2,3,7, %T A229760 6,4,5,5,9,3,8,1,6,4,0,3,8,8,4,7,4,2,7,5,7,2,9,1,0,2,7,5,4,5,8,9,4,7, %U A229760 9,0,7,4,3,6,2,1,9,5,1,0,0,5,8,5,5,8,5,5,9,1,6,2,1,2,1,7,7,2,5,0,3,0,4,9 %N A229760 Decimal expansion of 25 - 10*sqrt(5). %C A229760 Apart from the first digit the same as A187799. %H A229760 Ivan Panchenko, <a href="/A229760/b229760.txt">Table of n, a(n) for n = 1..1000</a> %e A229760 2.639320225002103035908263312687237645593816403884742757291027545894790... %t A229760 RealDigits[25 - Sqrt@ 500, 10, 111][[1]] (* _Robert G. Wilson v_, Oct 01 2013 *) %o A229760 (PARI) 25-sqrt(500) \\ _Charles R Greathouse IV_, Oct 01 2013 %Y A229760 Cf. A187426, A187798, A094874. %K A229760 cons,nonn %O A229760 1,1 %A A229760 _Joost Gielen_, Sep 28 2013