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 A080269 #5 Jan 11 2024 10:25:08 %S A080269 10,111000,1111001000,111100111110000000,1111001111110000001000, %T A080269 111100111111000000111110000000, %U A080269 11110011111100000011111100110010000000,111100111111000000111111001100111111111000000000000000 %N A080269 Breadth-first-wise A063171-like-encoding of the stunted binomial-mod-2 zigzag trees (A080264). %C A080269 These binary words converge to a certain infinite binary sequence: 1,1,1,1,0,0,1,1,1,1,1,1,0,0,0,... [To be computed.] %F A080269 a(n) = A007088(A080268(n)). %Y A080269 Cf. A080319. %K A080269 nonn %O A080269 0,1 %A A080269 _Antti Karttunen_, Mar 02 2003