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 A127760 #11 Jul 26 2020 09:04:43
%S A127760 1,6,22,58,125,238,411,663,1012,1482,2094,2875,3852,5052,6508,8250,
%T A127760 10314,12735,15550,18798,22521,26760,31559,36965,43023,49783,57296,
%U A127760 65612,74786,84873,95929,108011,121181,135498,151026,167829,185971
%N A127760 Integer part of Gauss's Arithmetic-Geometric Mean M(1,n^4).
%F A127760 a(n) ~ Pi*n^4/(8*log(n) + 4*log(2)). - _Vaclav Kotesovec_, May 09 2016
%t A127760 Table[Floor[ArithmeticGeometricMean[1, n^4]], {n, 1, 100}]
%Y A127760 Cf. A127758, A127759, A127761.
%K A127760 nonn
%O A127760 1,2
%A A127760 _Artur Jasinski_, Jan 28 2007