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%I #9 Sep 12 2018 15:08:02
%S 1,2,4,14,96,362,3886,25286,151808,2489450,14280474,124799006,
%T 1960723254,20231550926,156250567050,1461001415354,40509753514368,
%U 310787396790506,3485943793554442,33604044850975838
%N "BGJ" (reversible, element, labeled) transform of 2,2,2,2...
%H Andrew Howroyd, <a href="/A032052/b032052.txt">Table of n, a(n) for n = 0..200</a>
%H C. G. Bower, <a href="/transforms2.html">Transforms (2)</a>
%o (PARI) seq(n)=[subst(serlaplace(y^0*p + polcoeff(p,1)),y,1)/2 | p <- Vec(y-1+serlaplace(prod(k=1, n, 1 + x^k*y/k! + O(x*x^n))^2))] \\ _Andrew Howroyd_, Sep 12 2018
%K nonn
%O 0,2
%A _Christian G. Bower_
%E a(0)=1 prepended by _Andrew Howroyd_, Sep 12 2018
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