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 A260123 #10 May 08 2024 10:30:14 %S A260123 1,2,2,2,2,2,4,2,4,2,4,2,2,4,4,2,4,2,4,2,4,2,2,4,4,2,2,4,2,2,2,4,4,4, %T A260123 2,8,2,4,4,4,2,4,2,8,2,2,4,4,2,2,4,2,8,2,4,2,4,2,4,4,8,2,4,4,4,4,4,4, %U A260123 2,8,2,4,2,4,4,8,2,4,2,4,2,2,4,4,2,2,4,2,8,4,4,2,8,2,4,4,4,2,4,2,8,2,2,8 %N A260123 The second infinite sequence of positive integers such that a(n) = A037445(a(1)+a(2)+...+a(n)) for all n>=1 (see also A260085). %C A260123 The second after A260085 infinitary analog of A259935 (see comment there). Using Guba's method (2015) one can prove that such an infinite sequence exists. %C A260123 All terms are powers of 2. %Y A260123 Cf. A037445, A259935, A260085. %K A260123 nonn %O A260123 1,2 %A A260123 _Vladimir Shevelev_, Jul 17 2015