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Search: id:A032010
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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, 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; listen)
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 this_sequence A032028 A127384 A058585

Adjacent sequences: A032007 A032008 A032009 this_sequence A032011 A032012 A032013

KEYWORD

nonn

AUTHOR

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

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Last modified December 4 15:11 EST 2009. Contains 170347 sequences.

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