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 A195784 #10 Nov 21 2024 08:01:46 %S A195784 1,2,5,3,2,7,8,3,1,1,6,8,0,6,5,3,9,6,8,7,4,5,6,6,9,8,6,3,5,7,0,8,4,7, %T A195784 1,8,0,4,8,1,4,7,7,2,6,8,3,8,6,7,2,3,7,5,2,3,3,9,6,4,0,3,0,9,8,6,4,9, %U A195784 3,4,3,9,3,1,3,8,4,3,9,6,9,3,8,4,3,6,2,1,9,0,7,9,2,8,5,5,9,2,6,6 %N A195784 Decimal expansion of arccsc(8). %H A195784 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a> %F A195784 From _Amiram Eldar_, May 30 2021: (Start) %F A195784 Equals Pi/2 - A195783. %F A195784 Equals arcsin(1/8) = arccos(3*sqrt(7)/8) = arctan(1/(3*sqrt(7))). (End) %e A195784 arccsc(8)=0.1253278311680653968745669863570847180481477... %t A195784 (See A195781.) %o A195784 (PARI) asin(1/8) \\ _Charles R Greathouse IV_, Nov 21 2024 %Y A195784 Cf. A195781, A195783. %K A195784 nonn,cons %O A195784 0,2 %A A195784 _Clark Kimberling_, Sep 24 2011