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 A078080 #12 Jul 08 2024 02:22:07 %S A078080 0,1,1,1,20,9,1,2,5,1,2,3,2,3,38,8,1,16,2,2,21,1,12,1,2,1,1,2,43,2,1, %T A078080 32,10,3,221,1,2,9,1,1,3,3,52,3,4,19,1,1,1,1,5,3,3,2,1,1,1,1,3,2,2,1, %U A078080 8,1,1,10,5,2,4,1,1,2,2,1,8,5,3,1,2,3,1,1,4,1,4,1,2,2,3,3,5,1 %N A078080 Continued fraction for constant defined in A065493. %o A078080 (PARI) contfrac((1 + prodeulerrat(1 - 2/p^2))/2) \\ _Amiram Eldar_, Jul 08 2024 %Y A078080 Cf. A065493 (decimal expansion). %K A078080 nonn,cofr %O A078080 0,5 %A A078080 _Benoit Cloitre_, Dec 02 2002 %E A078080 Offset changed and a(86) onwards corrected by _Andrew Howroyd_, Jul 05 2024