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 A176325 #13 Sep 08 2022 08:45:52 %S A176325 5,0,9,8,0,7,6,2,1,1,3,5,3,3,1,5,9,4,0,2,9,1,1,6,9,5,1,2,2,5,8,8,0,8, %T A176325 5,5,0,4,1,4,2,0,7,8,8,0,7,1,5,5,7,0,9,4,2,0,8,3,7,1,0,4,6,9,1,7,7,8, %U A176325 9,9,5,2,5,3,6,3,2,0,0,0,5,5,6,2,1,7,1,9,2,8,0,1,3,5,8,7,2,8,6,3,5,1,3,4,3 %N A176325 Decimal expansion of (5+3*sqrt(3))/2. %C A176325 Continued fraction expansion of (5+3*sqrt(3))/2 is A010721. %C A176325 a(n) = A104956(n) for n > 2. %H A176325 G. C. Greubel, <a href="/A176325/b176325.txt">Table of n, a(n) for n = 1..1000</a> %e A176325 5.09807621135331594029... %p A176325 evalf( (5+3*sqrt(3))/2, 100); # _G. C. Greubel_, Dec 05 2019 %t A176325 RealDigits[(5+3Sqrt[3])/2,10,120][[1]] (* _Harvey P. Dale_, May 20 2011 *) %o A176325 (PARI) default(realprecision, 100); (5+3*sqrt(3))/2 \\ _G. C. Greubel_, Dec 05 2019 %o A176325 (Magma) SetDefaultRealField(RealField(100)); (5+3*Sqrt(3))/2; // _G. C. Greubel_, Dec 05 2019 %o A176325 (Sage) numerical_approx((5+3*sqrt(3))/2, digits=100) # _G. C. Greubel_, Dec 05 2019 %Y A176325 Cf. A002194 (decimal expansion of sqrt(3)), A104956 (decimal expansion of (3*sqrt(3))/2), A010721 (repeat 5, 10). %K A176325 cons,nonn %O A176325 1,1 %A A176325 _Klaus Brockhaus_, Apr 15 2010