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 A020764 #20 Jul 08 2025 07:49:25 %S A020764 3,7,7,9,6,4,4,7,3,0,0,9,2,2,7,2,2,7,2,1,4,5,1,6,5,3,6,2,3,4,1,8,0,0, %T A020764 6,0,8,1,5,7,5,1,3,1,1,8,6,8,9,2,1,4,5,4,3,3,8,3,3,3,4,9,4,1,7,1,5,8, %U A020764 1,2,6,0,4,6,1,4,6,9,0,8,9,6,8,0,0,5,6,1,2,6,6,3,9,2,2,0,5,1,5 %N A020764 Decimal expansion of 1/sqrt(7). %C A020764 1/sqrt(7) = 0.377964473009227227214516536234180060815751311868921454338333494171... - _Vladimir Joseph Stephan Orlovsky_, May 27 2010 %H A020764 Ivan Panchenko, <a href="/A020764/b020764.txt">Table of n, a(n) for n = 0..1000</a> %H A020764 <a href="/index/Al#algebraic_02">Index entries for algebraic numbers, degree 2</a>. %F A020764 Equals 1/A010465. %t A020764 RealDigits[N[1/Sqrt[7],200]] (* _Vladimir Joseph Stephan Orlovsky_, May 27 2010 *) %t A020764 realDigitsRecip[Sqrt[7]] (* The realDigitsRecip program is at A021200 *) (* _Harvey P. Dale_, Sep 29 2024 *) %Y A020764 Cf. A010465. %K A020764 nonn,cons %O A020764 0,1 %A A020764 _N. J. A. Sloane_