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 A080265 #5 Jan 11 2024 09:24:12 %S A080265 1,6,51,6051,76746,12926010,2372452685,93393905915739, %T A080265 1351877861804543,286738012677424022,62026524057807548707, %U A080265 3041407633778252699836049,686215566631222460001238168,35912919120400408619708285058798 %N A080265 A014486-index of the stunted binomial-mod-2 zigzag trees. See A080263. %F A080265 a(n) = A080300(A080263(n)) %Y A080265 Cf. A080265, A080270. %K A080265 nonn %O A080265 0,2 %A A080265 _Antti Karttunen_, Mar 02 2003