%I #8 Jun 21 2018 17:17:56
%S 1,1,2,5,7,15,25,43,64,120,234,348,615,995,1817,4060,6039,10505,17947,
%T 30268,52289,122862,175180,311547,502859,860833,1359388,2391385,
%U 5262510,7592091,12992464,20881955,34210817,54117104
%N "DFK" (bracelet, size, unlabeled) transform of 1,2,3,4...
%H Andrew Howroyd, <a href="/A032216/b032216.txt">Table of n, a(n) for n = 0..1000</a>
%H C. G. Bower, <a href="/transforms2.html">Transforms (2)</a>
%o (PARI) seq(n)={apply(p->subst(serlaplace(p/y + polcoeff(p,1) + polcoeff(p,2)), y, 1)/2, Vec(y-1+prod(k=1, n, 1 + k*x^k*y + O(x*x^n))))} \\ _Andrew Howroyd_, Jun 21 2018
%K nonn
%O 0,3
%A _Christian G. Bower_
%E a(0)=1 prepended by _Andrew Howroyd_, Jun 21 2018