%I #6 Oct 15 2015 14:15:12
%S 2,5,15,61,309,1856,12997,103981,935836,9358363,102941998,1235303982,
%T 16058951777,224825324882,3372379873234,53958077971757,
%U 917287325519884,16511171859357918,313712265327800453,6274245306556009077
%N [ exp(18/19)*n! ].
%t Floor[Exp[18/19]Range[20]!] (* _Harvey P. Dale_, Oct 15 2015 *)
%K nonn
%O 1,1
%A _Simon Plouffe_