A080273 Orbit size of each tree A080263(n) under Meeussen's bf<->df map on binary trees.

1, 3, 16, 1441, 41888, 3376173

Offset

0,2

Comments

This is the size of the cycle containing A080265(n) in the permutations A057117/A057118.

Links

Table of n, a(n) for n=0..5.

Formula

a(n) = A080311(A080265(n)).

Crossrefs

Cf. A080274, A080297.

Sequence in context: A304761 A316507 A317459 * A111824 A140519 A285740

Adjacent sequences: A080270 A080271 A080272 * A080274 A080275 A080276

Keyword

nonn,more

Author

Antti Karttunen, Mar 02 2003

Status

approved