A080977 - OEIS

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A080977

a(n) = A080272(2*n)/A080292(n).

%I #6 Jan 11 2024 10:57:53

%S 1,1,6,2,14,14,22,22,18,18,46,46,62,62,26,26

%N a(n) = A080272(2*n)/A080292(n).

%C This gives the orbit size (under the Catalan bijection A057505) for every other binomial-mod-2 tree A080263(2*n) divided by the orbit size of the corresponding branch-reduced tree A080293(n). See comment at A080972.

%K nonn,more

%O 0,3

%A _Antti Karttunen_, Mar 02 2003