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 A256583 #18 Apr 08 2015 12:27:23 %S A256583 1,11,66,336,1666,8186 %N A256583 a(n) is the total number of pentagrams in a variant of pentagram fractal after n iterations. %C A256583 Inspired by A255870. But the scale factor is (1/phi)^2 instead of 1/phi. %C A256583 See illustration in the links. %H A256583 Kival Ngaokrajang, <a href="/A256583/a256583.pdf">Illustration of initial terms</a> %Y A256583 Cf. A255870, A256429, A256569, A256571, A256582, A256597. %K A256583 nonn,more %O A256583 1,2 %A A256583 _Kival Ngaokrajang_, Apr 04 2015