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A080273 Orbit size of each tree A080263(n) under Meeussen's bf<->df map on binary trees. 3
1, 3, 16, 1441, 41888, 3376173 (list; graph; refs; listen; history; text; internal format)
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 * A096404 A111824 A140519

Adjacent sequences:  A080270 A080271 A080272 * A080274 A080275 A080276

KEYWORD

nonn

AUTHOR

Antti Karttunen Mar 02 2003

STATUS

approved

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Last modified April 24 18:03 EDT 2019. Contains 322430 sequences. (Running on oeis4.)