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 A176324 #25 Aug 02 2025 03:54:26 %S A176324 5,1,0,8,7,4,5,9,7,3,7,4,9,7,5,4,6,4,5,8,1,0,7,0,2,6,1,3,5,1,9,8,2,2, %T A176324 2,7,4,6,8,0,7,2,1,4,1,9,5,4,6,7,8,0,0,1,1,6,4,9,3,8,0,1,1,9,6,4,5,6, %U A176324 0,7,7,4,6,5,7,7,4,3,9,0,4,9,3,1,6,8,1,6,8,0,9,7,7,5,2,4,5,9,8,7,4,6,4,4,2 %N A176324 Decimal expansion of (15+7*sqrt(5))/6. %C A176324 Continued fraction expansion of (15+7*sqrt(5))/6 is A010720. %C A176324 Volume of a triangular hebesphenorotunda (Johnson solid J_92) with unit edges. - _Paolo Xausa_, Aug 02 2025 %H A176324 G. C. Greubel, <a href="/A176324/b176324.txt">Table of n, a(n) for n = 1..1000</a> %H A176324 Wikipedia, <a href="https://en.wikipedia.org/wiki/Triangular_hebesphenorotunda">Triangular hebesphenorotunda</a>. %e A176324 5.10874597374975464581... %p A176324 evalf( (15+7*sqrt(5))/6, 100); # _G. C. Greubel_, Dec 05 2019 %t A176324 RealDigits[(15+7Sqrt[5])/6,10,120][[1]] (* _Harvey P. Dale_, Apr 18 2011 *) %o A176324 (PARI) default(realprecision, 100); (15+7*sqrt(5))/6 \\ _G. C. Greubel_, Dec 05 2019 %o A176324 (Magma) SetDefaultRealField(RealField(100)); (15+7*Sqrt(5))/6; // _G. C. Greubel_, Dec 05 2019 %o A176324 (Sage) numerical_approx((15+7*sqrt(5))/6, digits=100) # _G. C. Greubel_, Dec 05 2019 %Y A176324 Cf. A002163 (decimal expansion of sqrt(5)), A010720 (repeat 5, 9). %K A176324 nonn,cons,easy %O A176324 1,1 %A A176324 _Klaus Brockhaus_, Apr 15 2010