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 A192673 #7 Aug 14 2025 13:52:48
%S A192673 1,1,2,4,9,19,42,92,203,453,1018,2300,5224,11919,27301,62750,144662,
%T A192673 334392,774802,1799089,4185524,9754468,22769099,53225213,124585182,
%U A192673 291975928,685044632,1608962053,3782645385,8901012965,20962890607,49409138924,116543063346,275086432485
%N A192673 Floor-Sqrt transform of large Schroder numbers (A006318).
%F A192673 a(n) = floor(sqrt(largeSchroder(n))).
%t A192673 FSFromSeries[f_,x_,n_] := Map[Floor[Sqrt[#]]&,CoefficientList[Series[f,{x,0,n}],x]]
%t A192673 FSFromSeries[(1-x-Sqrt[1-6x+x^2])/(2x),x,100]
%K A192673 nonn
%O A192673 0,3
%A A192673 _Emanuele Munarini_, Jul 07 2011