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 A085505 #14 Jul 04 2019 18:54:33
%S A085505 4,23,67,138,239,371,534,728,954,1212,1501,1822,2175,2560,2977,3425,
%T A085505 3906,4419,4963,5539,6148,6788,7461,8165,8901,9669,10470,11302,12166,
%U A085505 13062,13990,14951,15943,16967,18023,19111,20231,21384,22568
%N A085505 a(n) = ceiling(((1*n^0 + 1*n^1 + 2*n^2 + 4*n^3)/(1*n^0 + 2*n^1 + 1*n^2))^2).
%t A085505 Table[Ceiling[((1+n+2n^2+4n^3)/(1+2n+n^2))^2],{n,40}] (* _Harvey P. Dale_, Jun 14 2011 *)
%Y A085505 Cf. A085899, A086790, A086814, A086822.
%K A085505 easy,nonn
%O A085505 1,1
%A A085505 Wang Dan (wangdan01(AT)lycos.com), Aug 19 2003
%E A085505 Corrected by _M. F. Hasler_, Jul 23 2007