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A217300 Number of height maximal AVL trees with n (leaf-) nodes. 4
1, 1, 2, 1, 4, 6, 4, 16, 32, 44, 60, 70, 128, 448, 864, 1552, 2720, 4288, 6312, 9004, 4096, 22528, 67584, 159744, 334080, 644992, 1195008, 2158912, 3811904, 6617184, 11307904, 18978576, 31327104, 1048576, 9437184, 44564480, 153092096, 437649408, 1107951616 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Alois P. Heinz, Table of n, a(n) for n = 1..1024

Wikipedia, AVL tree

Index entries for sequences related to rooted trees

FORMULA

a(n) = A143897(A072649(n)-1,n) = A217298(A072649(n)-1,n).

CROSSREFS

Cf. A217299.

Sequence in context: A217298 A217299 A333340 * A036662 A134306 A006265

Adjacent sequences:  A217297 A217298 A217299 * A217301 A217302 A217303

KEYWORD

nonn,look

AUTHOR

Alois P. Heinz, Mar 17 2013

STATUS

approved

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Last modified October 27 13:45 EDT 2021. Contains 348276 sequences. (Running on oeis4.)