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 A127759 #11 Jul 26 2020 09:04:07
%S A127759 1,3,9,18,31,50,74,105,143,189,243,307,380,463,557,663,780,910,1054,
%T A127759 1211,1382,1569,1770,1988,2222,2473,2742,3029,3334,3659,4003,4368,
%U A127759 4753,5159,5587,6038,6511,7008,7528,8072,8642,9236,9857,10503,11177,11877
%N A127759 Integer part of Gauss's Arithmetic-Geometric Mean M(1,n^3).
%F A127759 a(n) ~ Pi*n^3/(6*log(n) + 4*log(2)). - _Vaclav Kotesovec_, May 09 2016
%t A127759 Table[Floor[ArithmeticGeometricMean[1, n^3]], {n, 1, 100}]
%Y A127759 Cf. A127758, A127760, A127761.
%K A127759 nonn
%O A127759 1,2
%A A127759 _Artur Jasinski_, Jan 28 2007