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A032143 Number of compound rooted windmills with n nodes where any 2 submills extending from the same node are of different sizes. +0
1
1, 1, 1, 2, 3, 6, 13, 28, 60, 135, 316, 731, 1735, 4133, 9937, 24133, 58820, 144227, 355966, 881868, 2192529, 5479166, 13717843, 34474835, 86848986, 219454215, 555371300, 1409893698, 3583579216, 9130512970, 23294809707 (list; graph; listen)
OFFSET

1,4
LINKS

Index entries for sequences related to mobiles

FORMULA

Shifts left under "CFK" (necklace, size, unlabeled) transform

CROSSREFS

Sequence in context: A030040 A075853 A132045 this_sequence A032160 A089735 A000646

Adjacent sequences: A032140 A032141 A032142 this_sequence A032144 A032145 A032146

KEYWORD

nonn

AUTHOR

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

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Last modified March 20 09:10 EDT 2010. Contains 173642 sequences.

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