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 A195785 #7 Nov 20 2024 23:43:12 %S A195785 1,4,6,0,1,3,9,1,0,5,6,2,1,0,0,0,9,7,2,6,7,2,1,8,1,8,1,9,4,2,9,6,8,9, %T A195785 3,3,6,1,2,3,2,9,8,6,0,4,6,8,4,4,8,8,8,7,8,3,6,4,6,5,7,8,5,3,0,4,6,2, %U A195785 6,2,9,9,7,4,0,2,6,0,5,7,8,5,5,4,8,7,8,8,5,2,3,2,3,7,5,7,0,5,6,0 %N A195785 Decimal expansion of arctan(9). %H A195785 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a> %e A195785 arctan(9)=1.46013910562100097267218181942968933612... %t A195785 r = 9; %t A195785 N[ArcTan[r], 100] %t A195785 RealDigits[%] (* A195785 *) %t A195785 N[ArcCot[r], 100] %t A195785 RealDigits[%] (* A195786 *) %t A195785 N[ArcSec[r], 100] %t A195785 RealDigits[%] (* A195787 *) %t A195785 N[ArcCsc[r], 100] %t A195785 RealDigits[%] (* A195788 *) %o A195785 (PARI) atan(9) \\ _Charles R Greathouse IV_, Nov 20 2024 %Y A195785 Cf. A195786, A195797, A195798. %K A195785 nonn,cons %O A195785 1,2 %A A195785 _Clark Kimberling_, Sep 24 2011