%I #12 Aug 10 2022 09:46:43
%S 2,4,8,32,192,1536,15360,184320,2580480,41287680,743178240,
%T 14863564800,326998425600,7847962214400,204047017574400,
%U 5713316492083200,171399494762496000,5484783832399872000,186482650301595648000,6713375410857443328000
%N a(0) = 2, a(n) = 2^(n+1)*(n-1)! (n >= 1).
%F E.g.f.: 2-2*log(1-2x).
%t Join[{2},Table[2^(n+1) (n-1)!,{n,20}]] (* _Harvey P. Dale_, Mar 12 2013 *)
%Y Cf. A032184.
%K nonn
%O 0,1
%A Anonymous, Sep 27 2001
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