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 A080295 #7 Mar 29 2024 19:40:13 %S A080295 1,6,477,70818,2208159610,445557105328,19185898282602827, %T A080295 905428099582719818595 %N A080295 A014486-index of the branch-reduced binomial-mod-2 binary trees. %F A080295 a(n) = A080298(A080265(n)). %F A080295 a(n) = A080979(A080265(2*n)). %F A080295 a(n) = A080300(A080293(n)). %Y A080295 Cf. A014486, A080265, A080293, A080296, A080300, A080320, A080979. %K A080295 nonn %O A080295 0,2 %A A080295 _Antti Karttunen_, Mar 02 2003