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A080969 Orbit size of each non-branch-reduced tree encoded by A080971(n) under Donaghey's "Map M" Catalan automorphism. 3

%I

%S 2,2,2,6,6,6,6,6,6,2,2,6,6,6,3,6,6,6,6,6,6,6,6,6,6,6,6,6,3,6,6,6,3,6,

%T 6,6,6,6,2,2,6,6,6,6,6,6,6,6,6,6,20,6,6,6,6,6,6,6,6,6,6,6,6,20,2,6,6,

%U 6,20,20,6,6,6,6,6,20,6,6,20,6,20,6,6,20,20,6,20,6,6,6,20,20,6,6,20,20,6,20

%N Orbit size of each non-branch-reduced tree encoded by A080971(n) under Donaghey's "Map M" Catalan automorphism.

%C This is the size of the cycle containing A080970(n) in the permutations A057505/A057506.

%F a(n) = A080967(A080970(n))

%Y Cf. A080968, A080972.

%K nonn

%O 0,1

%A _Antti Karttunen_ Mar 02 2003

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Last modified August 24 13:48 EDT 2019. Contains 326279 sequences. (Running on oeis4.)