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 A344420 #13 Aug 03 2021 11:43:35
%S A344420 0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,3,
%T A344420 3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,6,6,
%U A344420 6,6,6,6,6,6,6,6,6,7,7,7,7,7,7,7,7,7,7,7,8,8,8,8,8,8
%N A344420 a(n) = floor(n/11).
%C A344420 Terms agree with A064458 for all n < 121, but a(121) = 11 while A064458(121) = 12.
%H A344420 <a href="/index/Rec#order_12">Index entries for linear recurrences with constant coefficients</a>, signature (1,0,0,0,0,0,0,0,0,0,1,-1).
%F A344420 From _Chai Wah Wu_, May 18 2021: (Start)
%F A344420 a(n) = a(n-1) + a(n-11) - a(n-12) for n > 11.
%F A344420 G.f.: x^11/(x^12 - x^11 - x + 1). (End)
%t A344420 Floor[Range[0, 100]/11]
%t A344420 CoefficientList[Series[x^11/(x^12-x^11-x+1),{x,0,100}],x] (* or *) LinearRecurrence[{1,0,0,0,0,0,0,0,0,0,1,-1},{0,0,0,0,0,0,0,0,0,0,0,1},100] (* _Harvey P. Dale_, Aug 03 2021 *)
%Y A344420 Cf. A064458, A059995 (floor n/10).
%K A344420 nonn,easy
%O A344420 0,23
%A A344420 _Wesley Ivan Hurt_, May 17 2021