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 A143082 #6 Mar 31 2012 12:35:07 %S A143082 3,5,5,6,5,6,7,7,8,7,9,8,7,9,8,10,9,9,10,10,9,11,11,10,9,11,11,10,12, %T A143082 12,11,11,13,12,12,11,13,13,13,12,11,14,13,13,12,15,14,14,13,13,15,15, %U A143082 17,14,13,16,15,15,15,14,13,16,16,15,15,14,17,17,16,16,15,15,17,17,17,16 %N A143082 Longer side (k) of bordered rectangle described in A168339. %F A143082 a(n) = A161357(n)+2. [From _R. J. Mathar_, Mar 06 2010] %Y A143082 Cf. A145299, A168339. Equals A161357 - 2. %K A143082 nonn %O A143082 1,1 %A A143082 _R. H. Hardin_ and _N. J. A. Sloane_, Nov 27 2009 %E A143082 Extended with output of the program in A168339, variable dimn+2, by _R. J. Mathar_, Mar 06 2010