%I #8 Sep 11 2018 17:02:06
%S 1,2,1,7,9,21,148,281,997,3037,33036,76275,352586,1466713,6840499,
%T 96591514,293606525,1501812845,7541619580,45272015807,252241209910,
%U 5166271223047,18007882089737,113281855815782,613837386060838,4188738630903441,29051626448346113
%N "EFJ" (unordered, size, labeled) transform of 2,1,1,1,...
%H Andrew Howroyd, <a href="/A032298/b032298.txt">Table of n, a(n) for n = 0..200</a>
%H C. G. Bower, <a href="/transforms2.html">Transforms (2)</a>
%F E.g.f.: (1 + 2*x)*Product_{k >= 2} (1 + x^k/k!). - _Andrew Howroyd_, Sep 11 2018
%o (PARI) seq(n)={Vec(serlaplace((1 + 2*x)*prod(k=2, n, 1 + x^k/k! + O(x*x^n))))} \\ _Andrew Howroyd_, Sep 11 2018
%K nonn
%O 0,2
%A _Christian G. Bower_
%E a(0)=1 prepended and terms a(24) and beyond from _Andrew Howroyd_, Sep 11 2018