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 A275913 #7 Aug 27 2016 21:20:02 %S A275913 1,2,3,5,11,15,17,33,35,51,57,65,91,105,129,165,195,205,221,255,257, %T A275913 385,451,561,861,897,969,1615 %N A275913 A close cousin of A222313 (see Cobeli et al. 2015 for precise definition). %H A275913 Cristian Cobeli, Mihai Prunescu, Alexandru Zaharescu, <a href="http://arxiv.org/abs/1511.04315">A growth model based on the arithmetic Z-game</a>, arXiv:1511.04315 [math.NT], 2015. See Eq. (5.6). %Y A275913 Cf. A222313. %K A275913 nonn,more %O A275913 1,2 %A A275913 _N. J. A. Sloane_, Aug 27 2016