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 A197588 #11 May 03 2025 22:25:35 %S A197588 1,7,6,9,8,0,0,3,5,8,9,1,9,5,0,1,0,1,9,3,4,5,5,3,1,7,0,7,3,3,5,9,4,3, %T A197588 2,7,4,1,9,6,8,0,2,3,3,5,0,2,6,8,3,5,8,3,4,6,9,1,4,6,9,7,6,8,6,4,5,3, %U A197588 0,3,5,6,3,0,7,0,5,7,7,7,9,4,2,5,8,2,8,7,1,9,4,1,1,4,3,3,2,7,0 %N A197588 Decimal expansion of the maximum of (cos(x))^2+(sin(3x))^2. %C A197588 For a discussion and guide to related sequences, see A197739. %e A197588 x=1.7698003589195010193455317073359432741968023... %t A197588 (See the program at A197739.) %t A197588 RealDigits[1 + 4/(3*Sqrt[3]), 10, 99] // First (* _Jean-François Alcover_, Feb 27 2013 *) %o A197588 (PARI) 1 + 4/(3*sqrt(3)) \\ _Stefano Spezia_, May 03 2025 %Y A197588 Cf. A197739. %K A197588 nonn,cons %O A197588 1,2 %A A197588 _Clark Kimberling_, Oct 18 2011