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%I #16 Jan 23 2018 16:07:21
%S 1,4,14,51,216,1095,6588,46137,369120,3322107,33221100,365432133,
%T 4385185632,57007413255,798103785612,11971556784225,191544908547648,
%U 3256263445310067,58612742015581260,1113642098296043997
%N a(n) = n*(a(n-1)+3), a(0)=1.
%H G. C. Greubel, <a href="/A165813/b165813.txt">Table of n, a(n) for n = 0..250</a>
%F a(n) = n! + 3*floor(e*n!) - 3. - _Gary Detlefs_, Jun 06 2010
%t FoldList[#1*#2 + 3 #2 &, 1, Range[19]] (* _Robert G. Wilson v_, Jul 07 2012 *)
%Y Cf. A000142, A033540, A165792.
%K nonn
%O 0,2
%A _Philippe Deléham_, Sep 28 2009
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