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 A036680 #20 Aug 20 2023 10:48:17 %S A036680 3,13,226,757098,1493980747140,3358884634272343840743139, %T A036680 31207490927201886805011133752520957788381952996897, %U A036680 1532767887228913328212783830676536430748824655051820601315140788525355884052980975649269521964006675 %N A036680 Expansion of C in Egyptian fractions, where C contains the primes in binary. %H A036680 <a href="/index/Ed#Egypt">Index entries for sequences related to Egyptian fractions</a> %e A036680 C in binary = 0.011010100010100010100010000010100... = 1/3 + 1/13 + 1/226 + ... %Y A036680 Cf. A010051 (binary), A051006 (decimal), A051007 (continued fraction). %K A036680 nonn %O A036680 0,1 %A A036680 _Simon Plouffe_