

A032236


Number of dyslexic rooted compound windmills with n nodes and leaves of 2 colors where any 2 submills extending from the same node are different.


1



2, 2, 3, 7, 16, 41, 112, 318, 922, 2763, 8394, 25957, 81172, 256820, 819114, 2633626, 8525056, 27755962, 90841159, 298680608, 986156342, 3268174479, 10867702340, 36250205100, 121257882210, 406663900459, 1367092812987
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OFFSET

1,1


LINKS

Andrew Howroyd, Table of n, a(n) for n = 1..200
C. G. Bower, Transforms (2)
Index entries for sequences related to mobiles


FORMULA

Shifts left under "DGK" (bracelet, element, unlabeled) transform.


PROG

(PARI)
DGK(v)={apply(p>subst(serlaplace(p/y + polcoeff(p, 1) + polcoeff(p, 2)), y, 1)/2, Vec(prod(k=1, #v, (1 + x^k*y + O(x*x^#v))^v[k])1, #v))}
seq(n)={my(v=[2]); for(i=2, n, v=concat([2], DGK(v))); v} \\ Andrew Howroyd, Sep 20 2018


CROSSREFS

Sequence in context: A002848 A032257 A038075 * A128776 A117387 A113842
Adjacent sequences: A032233 A032234 A032235 * A032237 A032238 A032239


KEYWORD

nonn


AUTHOR

Christian G. Bower


STATUS

approved



