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 A020808 #12 Jul 08 2025 07:52:21 %S A020808 1,4,0,0,2,8,0,0,8,4,0,2,8,0,0,9,8,0,3,5,2,9,2,9,4,0,8,0,6,6,0,2,4,8, %T A020808 0,9,3,8,7,5,7,1,9,8,3,5,2,7,5,0,4,5,8,4,9,6,4,8,7,1,1,9,3,7,7,9,7,2, %U A020808 1,9,6,8,7,5,3,7,2,5,9,1,9,3,3,8,4,1,1,5,3,3,5,9,8,6,8,2,7,5,3 %N A020808 Decimal expansion of 1/sqrt(51). %H A020808 Ivan Panchenko, <a href="/A020808/b020808.txt">Table of n, a(n) for n = 0..1000</a> %t A020808 RealDigits[N[1/Sqrt[51], 200]] (* _Vladimir Joseph Stephan Orlovsky_, Jun 12 2011 *) %Y A020808 Cf. A020804. %K A020808 nonn,cons,easy %O A020808 0,2 %A A020808 _N. J. A. Sloane_