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 A195787 #11 Nov 21 2024 07:59:50 %S A195787 1,4,5,9,4,5,5,3,1,2,4,5,3,9,3,2,7,2,6,9,0,9,5,9,3,3,1,9,6,2,6,6,4,1, %T A195787 3,9,0,7,9,3,0,1,1,8,2,8,0,9,5,4,2,7,3,8,1,4,1,7,8,9,8,9,8,2,9,2,3,6, %U A195787 3,7,7,9,9,3,3,3,5,3,4,2,7,7,5,9,0,9,6,6,8,1,5,6,3,8,9,4,7,0,0,0 %N A195787 Decimal expansion of arcsec(9). %H A195787 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a> %e A195787 arcsec(9)=1.4594553124539327269095933196266413907930... %t A195787 (See A195785.) %t A195787 RealDigits[ArcCos[1/9],10,120][[1]] (* _Harvey P. Dale_, May 22 2014 *) %o A195787 (PARI) acos(1/9) \\ _Charles R Greathouse IV_, Apr 09 2014 %Y A195787 Cf. A195785. %K A195787 nonn,cons %O A195787 1,2 %A A195787 _Clark Kimberling_, Sep 24 2011