A032238 - OEIS

A032238

Number of series-reduced dyslexic planted compound windmills with n leaves of 2 colors where any 2 submills extending from the same node are different.

2, 1, 2, 5, 14, 43, 142, 475, 1640, 5774, 20682, 74911, 274392, 1014155, 3778158, 14170988, 53471322, 202835554, 773073462, 2958951714, 11368816862, 43832643969, 169531531422, 657591743743, 2557480816940, 9970749112046, 38960285199980, 152554056890622

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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

Doubles (index 2+) 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))}