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 A161357 #9 Jul 25 2024 02:44:24 %S A161357 1,3,3,4,3,4,5,5,6,5,7,6,5,7,6,8,7,7,8,8,7,9,9,8,7,9,9,8,10,10,9,9,11, %T A161357 10,10,9,11,11,11,10,9,12,11,11,10,13,12,12,11,11,13,13,15,12,11,14, %U A161357 13,13,13,12,11,14,14,13,13,12,15,15,14,14,13,13,15,15,15,14,14,13,16,16 %N A161357 Longer side (x) of inner rectangle described in A168339. %F A161357 a(n) = A143082(n)-2. [From _R. J. Mathar_, Mar 06 2010] %Y A161357 Cf. A161358, A168339. Equals A143082 + 2. %K A161357 nonn %O A161357 1,2 %A A161357 _R. H. Hardin_ and _N. J. A. Sloane_, Nov 27 2009 %E A161357 Extended with output of the variable dimn of the progr. in A168339 - _R. J. Mathar_, Mar 06 2010