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 A379534 #18 Aug 03 2025 12:36:36 %S A379534 0,5,4,8,7,5,9,9,9,1,7,0,8,9,6,7,0,8,9,7,2,8,1,0,9,9,7,1,0,2,2,9,3,5, %T A379534 6,3,0,6,3,1,5,4,8,9,6,0,9,5,2,4,1,1,2,6,5,3,5,7,1,6,6,6,0,9,4,8,0,4, %U A379534 6,4,8,2,9,9,7,5,9,7,4,8,0,7,0,8,2,5,4,3,3,8,7,5,1,4,2,2,1,1,1,8,5 %N A379534 Decimal expansion of (9*sqrt(65) - 55)/320. %C A379534 Lower bound to the 9th Heilbronn triangle constant. %D A379534 Steven R. Finch, Mathematical Constants, Encyclopedia of Mathematics and its Applications, vol. 94, Cambridge University Press, 2003, Section 8.16, p. 527. %H A379534 Francesc Comellas and J. Luis A. Yebra, <a href="https://doi.org/10.37236/1623">New lower bounds for Heilbronn numbers</a>, Elec. J. Combin. 9 (2002) R6. See pp. 6, 8. %F A379534 Minimal polynomial: 320*x^2 + 110*x - 7. - _Stefano Spezia_, Aug 03 2025 %e A379534 0.054875999170896708972810997102293563063154896095241... %t A379534 RealDigits[(9Sqrt[65]-55)/320,10,100][[1]] %Y A379534 Cf. A010517, A248866, A343851, A379533. %K A379534 nonn,cons,easy %O A379534 0,2 %A A379534 _Stefano Spezia_, Dec 24 2024