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

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, 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, 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

Offset

0,1

Comments

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

Links

Table of n, a(n) for n=0..97.

Formula

a(n) = A080967(A080970(n))

Crossrefs

Cf. A080968, A080972.

Sequence in context: A171698 A339385 A395725 * A214078 A155453 A032558

Adjacent sequences: A080966 A080967 A080968 * A080970 A080971 A080972

Keyword

nonn

Author

Antti Karttunen, Mar 02 2003

Status

approved