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 A265180 #26 Mar 17 2018 04:11:19
%S A265180 2,6,7,5,6,1,2,4,6,6,8,0,4,8,0,9,9,7,0,9,4,6,9,9,6,2,3,9,9,6,4,1,3,3,
%T A265180 7,2,2,4,0,4,9,6,3,0,7,7,7,8,6,4,6,1,7,0,9,9,0,4,3,3,1,6,7,2,5,4,2,6,
%U A265180 3,6,0,1,9,1,7,8,6,6,6,0,7,9,9,8,6,1,7
%N A265180 Decimal expansion of the maximum of the function f(x) = x*Sum_{n>=1} n^2*(2*n^2*x^2-3)*exp(-n^2*x^2).
%H A265180 Gheorghe Coserea, <a href="/A265180/b265180.txt">Table of n, a(n) for n = 0..1024</a>
%H A265180 Philippe Flajolet, Zhicheng Gao, Andrew M. Odlyzko, Bruce Richmond. <a href="https://hal.inria.fr/inria-00076989">The Distribution of heights of binary trees and other simple trees</a>, Research Report RR-1749, INRIA, 1992.
%H A265180 Philippe Flajolet, Andrew M. Odlyzko. <a href="https://hal.inria.fr/inria-00076505">The average height of binary trees and other simple trees</a>, Research Report RR-0056, INRIA, 1981.
%e A265180 0.2675612...
%Y A265180 Cf. A259885, A265179 (position of maximum).
%K A265180 nonn,cons
%O A265180 0,1
%A A265180 _Gheorghe Coserea_, Dec 03 2015