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 A120191 #4 Jan 17 2020 13:06:31
%S A120191 6,7,8,9,11,12,14,16,18,21,24,27,31,35,40,46,53,60,69,79,90,103,118,
%T A120191 134,154,176,201,229,262,300,342,391,447,511,584,667,763,872,996,1139
%N A120191 a(1)=6; a(n)=floor((47+sum(a(1) to a(n-1)))/7).
%t A120191 nxt[{t_,a_}]:=Module[{c=Floor[(47+t)/7]},{t+c,c}]; NestList[nxt,{0,6},40][[All,2]] (* _Harvey P. Dale_, Jan 17 2020 *)
%Y A120191 Cf. A073941, A112088, A072493.
%K A120191 nonn
%O A120191 1,1
%A A120191 _Graeme McRae_, Jun 10 2006