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 A019695 #15 Jul 08 2025 07:34:43 %S A019695 8,9,7,5,9,7,9,0,1,0,2,5,6,5,5,2,1,0,9,8,9,3,2,6,6,8,0,9,3,7,0,0,0,8, %T A019695 2,4,0,5,6,3,3,4,1,1,4,1,0,7,1,7,3,0,9,1,7,0,7,1,2,7,0,2,6,3,7,3,6,6, %U A019695 1,8,3,0,3,6,7,4,8,8,2,8,5,3,2,2,2,9,5,6,6,4,3,8,3,4,6,2,0,1,9 %N A019695 Decimal expansion of 2*Pi/7. %H A019695 Ivan Panchenko, <a href="/A019695/b019695.txt">Table of n, a(n) for n = 0..1000</a> %H A019695 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a> %t A019695 RealDigits[(2 Pi)/7,10,120][[1]] (* _Harvey P. Dale_, Oct 04 2016 *) %o A019695 (PARI) 2*Pi/7 \\ _Charles R Greathouse IV_, Sep 30 2022 %Y A019695 Equals twice A019674. %K A019695 nonn,cons %O A019695 0,1 %A A019695 _N. J. A. Sloane_