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A032010 Number of rooted planar trees where any 2 subtrees extending from same node have a different number of nodes. 0
1, 1, 1, 2, 4, 9, 23, 62, 164, 449, 1263, 3636, 10500, 30859, 90895, 271178, 810918, 2447715, 7406439, 22589066, 68974940, 211989119, 652180385, 2016872920, 6242930834, 19412141273, 60390977831, 188627507266 (list; graph; refs; listen; history; internal format)
OFFSET

1,4

LINKS

C. G. Bower, Transforms (2)

Index entries for sequences related to rooted trees

FORMULA

"CFK" (Necklace, size, unlabeled) transform of A032009 (shifted right one place)

CROSSREFS

Sequence in context: A151404 A027071 A027133 * A032028 A190277 A127384

Adjacent sequences:  A032007 A032008 A032009 * A032011 A032012 A032013

KEYWORD

nonn

AUTHOR

Christian G. Bower (bowerc(AT)usa.net)

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Last modified February 16 10:39 EST 2012. Contains 205904 sequences.