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Search: id:A032161
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A032161 Number of rooted compound windmills with n nodes and leaves of 2 colors where any 2 submills extending from the same node are different. +0
1
2, 2, 3, 7, 18, 48, 145, 444, 1393, 4507, 14759, 49142, 165317, 562091, 1925899, 6647608, 23092972, 80660663, 283138682, 998248096, 3533524793, 12552572322, 44737515682, 159919954982, 573214555207, 2059779884427 (list; graph; listen)
OFFSET

1,1
LINKS

Index entries for sequences related to mobiles

FORMULA

Shifts left under "CGK" (necklace, element, unlabeled) transform.

CROSSREFS

Sequence in context: A128776 A117387 A113842 this_sequence A098738 A083701 A076996

Adjacent sequences: A032158 A032159 A032160 this_sequence A032162 A032163 A032164

KEYWORD

nonn

AUTHOR

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

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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