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A032218
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Number of dyslexic rooted compound windmills with n nodes where any 2 submills extending from the same node are different sizes.
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1
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1, 1, 1, 2, 3, 6, 12, 25, 51, 111, 244, 543, 1219, 2783, 6352, 14763, 34208, 80271, 188517, 446696, 1057534, 2527328, 6029096, 14488609, 34792504, 84059268, 202861050, 492369844, 1193743829, 2907834039, 7078295983, 17300759883, 42248522887, 103574837980
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OFFSET
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1,4
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LINKS
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FORMULA
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Shifts left under "DFK" (bracelet, size, unlabeled) transform.
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PROG
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(PARI)
DFK(v)={apply(p->subst(serlaplace(p/y + polcoeff(p, 1) + polcoeff(p, 2)), y, 1)/2, Vec(-1 + prod(k=1, #v, 1 + v[k]*x^k*y + O(x*x^#v)), -#v))}
seq(n)={my(v=[1]); for(i=2, n, v=concat([1], DFK(v))); v} \\ Andrew Howroyd, Sep 20 2018
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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