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 A256582 #16 Apr 08 2015 12:32:48 %S A256582 1,11,46,146,416,1136,2776 %N A256582 a(n) is the total number of pentagrams in a variant of pentagram fractal after n iterations. %C A256582 Inspired by A255870. But the scale factor is tan(3*Pi/10)/(1+phi) instead of 1/phi. %C A256582 See illustration in the links. %H A256582 Kival Ngaokrajang, <a href="/A256582/a256582.pdf">Illustration of initial terms</a> %Y A256582 Cf. A255870, A256429, A256569, A256571, A256583, A256597. %K A256582 nonn,more %O A256582 1,2 %A A256582 _Kival Ngaokrajang_, Apr 04 2015