A080292 Orbit size of each tree A080293(n) under Donaghey's "Map M" Catalan automorphism.

1, 3, 9, 9, 81, 81, 81, 27, 1701, 1701, 1701, 1701, 2673, 2673, 891, 891

Offset

0,2

Comments

This is the size of the cycle containing A080295(n) in the permutations A057505/A057506.

Links

Table of n, a(n) for n=0..15.

Formula

a(n) = A080967(A080295(n))

Crossrefs

A080977(n) = A080272(2*n)/a(n). A080302(n) = a(n)/3 for n>0. Cf. A080973/A080975.

Sequence in context: A351929 A238912 A038227 * A273893 A228165 A114022

Adjacent sequences: A080289 A080290 A080291 * A080293 A080294 A080295

Keyword

nonn,more

Author

Antti Karttunen, Mar 02 2003

Status

approved