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%I #6 Oct 10 2018 16:32:57
%S 1,2,6,25,126,756,5298,42387,381485,3814852,41963378,503560537,
%T 6546286983,91648017770,1374720266550,21995524264802,373923912501650,
%U 6730630425029702,127881978075564346,2557639561511286935
%N [ exp(1/20)*n! ].
%t Floor[Exp[1/20](Range[30]!)] (* _Harvey P. Dale_, Oct 10 2018 *)
%K nonn
%O 1,2
%A _Simon Plouffe_