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 A192677 #7 Aug 14 2025 13:52:23
%S A192677 1,1,1,2,3,5,8,15,27,51,97,188,374,753,1546,3217,6797,14553,31580,
%T A192677 69352,154138,346341,786692,1804949,4182366,9781638,23086472,54960683,
%U A192677 131951799,319359086,779048952,1914843089,4741419557,11824255970,29693231388,75068841641,191035103175
%N A192677 Floor-Sqrt transform of involution numbers (A000085).
%F A192677 a(n) = floor(sqrt(A000085(n))).
%t A192677 FSFromExpSeries[f_,x_,n_] := Map[Floor[Sqrt[#]]&,CoefficientList[Series[f,{x,0,n}],x]Table[k!,{k,0,n}]]
%t A192677 FSFromExpSeries[Exp[x+x^2/2],x,100]
%K A192677 nonn
%O A192677 0,4
%A A192677 _Emanuele Munarini_, Jul 07 2011