A032235 - OEIS

%I #13 Sep 20 2018 16:45:13

%S 1,1,1,2,3,6,12,25,52,113,251,560,1268,2896,6680,15527,36301,85364,

%T 201747,479040,1141953,2732737,6560655,15799567,38154309,92378578,

%U 224192754,545292987,1328985026,3245140686,7938052589

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

%H Andrew Howroyd, <a href="/A032235/b032235.txt">Table of n, a(n) for n = 1..200</a>

%H C. G. Bower, <a href="/transforms2.html">Transforms (2)</a>

%H <a href="/index/Mo#mobiles">Index entries for sequences related to mobiles</a>

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

%o (PARI)

%o 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))}

%o seq(n)={my(v=[1]); for(i=2, n, v=concat([1], DGK(v))); v} \\ _Andrew Howroyd_, Sep 20 2018

%K nonn

%O 1,4

%A _Christian G. Bower_