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A080071 Top-level length of each parenthesization/root degree of general trees encoded in A080070. 5
0, 1, 2, 2, 3, 2, 3, 3, 3, 2, 4, 2, 3, 3, 3, 3, 4, 3, 2, 3, 4, 4, 3, 3, 2, 4, 2, 3, 4, 3, 2, 4, 3, 3, 3, 4, 3, 2, 3, 4, 3, 2, 3, 6, 3, 3, 3, 4, 3, 3, 3, 3, 3, 2, 4, 3, 2, 4, 5, 3, 2, 4, 3, 2, 3, 3, 4, 2, 4, 3, 2, 3, 5, 2, 4, 2, 6, 3, 3, 3, 3, 3, 2, 4, 2, 3, 4, 5, 5, 3, 3, 2, 5, 2, 5, 2, 3, 4, 2, 4, 3, 3, 4, 3, 2 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

FORMULA

a(n) = A057515(A080068(n))

CROSSREFS

Cf. A080070, A080090.

Sequence in context: A100198 A164996 A136510 * A202472 A019569 A003434

Adjacent sequences:  A080068 A080069 A080070 * A080072 A080073 A080074

KEYWORD

nonn

AUTHOR

Antti Karttunen (Firstname.Surname(AT)iki.fi) Jan 27 2003

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Last modified February 13 08:12 EST 2012. Contains 205451 sequences.