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 A064468 #10 Jul 03 2025 17:44:47 %S A064468 1,2,7,16,30,63,121,239,484,981,1960,3931,7897,15819,31728,63575, %T A064468 127353,255161,511013,1023397,2049131,4102600,8213243 %N A064468 Positions of powers of 2 in A064413 (if it starts at 2). %H A064468 J. C. Lagarias, E. M. Rains and N. J. A. Sloane, <a href="http://arXiv.org/abs/math.NT/0204011">The EKG sequence</a>, Exper. Math. 11 (2002), 437-446. %H A064468 <a href="/index/Ed#EKG">Index entries for sequences related to EKG sequence</a> %Y A064468 See A064954 for a better version. %K A064468 nonn %O A064468 1,2 %A A064468 _N. J. A. Sloane_, Oct 05 2001 %E A064468 More terms from Eric M. Rains (rains(AT)caltech.edu), Oct 05 2001.