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A032201 Number of rooted compound windmills with n nodes and leaves of 2 colors. 0
2, 2, 5, 13, 40, 128, 457, 1660, 6308, 24409, 96363, 385535, 1561706, 6387135, 26347199, 109471366, 457758461, 1924845582, 8134171456, 34526723986, 147139513066, 629314845284, 2700401538933, 11622130671430 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

LINKS

Index entries for sequences related to mobiles

FORMULA

Shifts left under "CIK" (necklace, indistinct, unlabeled) transform.

CROSSREFS

Sequence in context: A029856 A072898 A032290 * A199655 A185966 A032097

Adjacent sequences:  A032198 A032199 A032200 * A032202 A032203 A032204

KEYWORD

nonn

AUTHOR

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

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Last modified February 14 11:09 EST 2012. Contains 205614 sequences.