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 A065431 #18 Jul 04 2024 15:37:57
%S A065431 0,3,3,1,29,4,1,20,1,2,1,45,1,1,1,5,2,1,6,1,7,9,1,12,5,4,1,22,8,1,1,1,
%T A065431 4,1,2,1,1,13,2,2,1,20,1,1,6,1,4,5,8,12,1,1,1,18,1,1,1,11,1,1813,2,1,
%U A065431 6,2,1,517,1,1,4,3,6,1,4,1,1,7,4,24,3,5,1,5,2,4,1,24,4,2,7,9,1,59,3,1,2
%N A065431 Continued fraction expansion of Hardy-Littlewood constant (A065419) Product_{p prime >= 5} (1-(6*p^2-4*p+1)/(p-1)^4).
%H A065431 Gerhard Niklasch, <a href="https://people.mpim-bonn.mpg.de/moree/Moree-details.en.shtml">Some number-theoretical constants: 1000-digit values</a>.
%o A065431 (PARI) contfrac(prodeulerrat(1-(6*p^2-4*p+1)/(p-1)^4, 1, 5)) \\ _Amiram Eldar_, Mar 10 2021
%Y A065431 Cf. A065419 (decimal expansion).
%K A065431 nonn,cofr
%O A065431 0,2
%A A065431 _Robert G. Wilson v_, Nov 16 2001
%E A065431 Sign in definition corrected by _R. J. Mathar_, Feb 25 2009
%E A065431 Offset changed by _Andrew Howroyd_, Jul 04 2024