A080968 - OEIS

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A080968

Orbit size of each branch-reduced tree encoded by A080981(n) under Donaghey's "Map M" Catalan automorphism.

1, 1, 2, 2, 3, 3, 3, 6, 6, 6, 6, 6, 6, 3, 2, 3, 5, 3, 5, 5, 5, 5, 3, 3, 2, 3, 6, 24, 24, 24, 24, 6, 24, 24, 24, 6, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 6, 24, 24, 24, 24, 24, 6, 24, 24, 6, 3, 18, 9, 24, 18, 18, 9, 18, 9, 18, 18, 3, 24, 15, 15, 24, 24, 18, 15, 15, 24, 3, 24, 24, 15, 15, 24 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,3`
	COMMENTS	`This is the size of the cycle containing A080980(n) in the permutations A057505/A057506.` `If the conjecture given in A080070 is true, then this sequence contains only six 2's. Questions: are there any (other) values with finite number of occurrences? Which primes will eventually appear?`
	FORMULA	`a(n) = A080967(A080980(n))`
	CROSSREFS	`Cf. A080969, A080972.` `Sequence in context: A169618 A175454 A157501 * A115733 A025496 A099959` `Adjacent sequences: A080965 A080966 A080967 * A080969 A080970 A080971`
	KEYWORD	`nonn`
	AUTHOR	`Antti Karttunen (my_firstname.my_surname(AT)iki.fi) Mar 02 2003`

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Last modified February 14 10:43 EST 2012. Contains 205614 sequences.