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 A176435 #7 Feb 20 2022 19:31:07 %S A176435 7,3,1,8,8,1,3,0,7,9,1,2,9,8,6,6,6,7,2,1,5,6,7,0,5,9,9,4,7,7,3,3,4,0, %T A176435 4,0,7,4,8,7,0,4,7,1,4,7,3,0,6,6,4,3,2,5,2,1,7,2,7,0,1,7,6,9,9,2,2,3, %U A176435 9,0,3,5,4,6,2,3,1,4,2,4,0,5,5,0,3,6,3,4,6,3,2,9,1,1,2,0,4,1,9,3,8,9,8,0,0 %N A176435 Decimal expansion of (21+5*sqrt(21))/6. %C A176435 Continued fraction expansion of (21+5*sqrt(21))/6 is A010705 preceded by 7. %H A176435 Daniel Starodubtsev, <a href="/A176435/b176435.txt">Table of n, a(n) for n = 1..10000</a> %e A176435 (21+5*sqrt(21))/6 = 7.31881307912986667215... %t A176435 RealDigits[(21+5*Sqrt[21])/6,10,120][[1]] (* _Harvey P. Dale_, Feb 20 2022 *) %Y A176435 Cf. A010477 (decimal expansion of sqrt(21)), A010705 (repeat 3, 7). %K A176435 cons,nonn %O A176435 1,1 %A A176435 _Klaus Brockhaus_, Apr 19 2010