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 A335527 #4 Jun 12 2020 09:23:08 %S A335527 4,8,60,60,188,152,380,356,644,600,980,868,1388,1304,1868,1780,2412, %T A335527 2296,3012,2924,3700,3592,4460,4276,5292,5136,6196,6020,7156,6960, %U A335527 8180,8012,9292,9080,10476,10204,11716,11472,13028,12796,14404,14160,15868,15636 %N A335527 a(n) is the number of edges formed by n-secting the angles of a square. %C A335527 See A278823 for illustrations. %Y A335527 Cf. A335412, A278823 (regions), A335526 (vertices), A335528 (ngons). %K A335527 nonn %O A335527 1,1 %A A335527 _Lars Blomberg_, Jun 12 2020