%I #6 Oct 01 2015 10:29:00
%S 1,2,6,26,134,804,5632,45058,405525,4055253,44607785,535293421,
%T 6958814485,97423402796,1461351041944,23381616671119,397487483409030,
%U 7154774701362549,135940719325888433,2718814386517768672
%N [ exp(1/9)*n! ].
%t Floor[Exp[1/9](Range[20]!)] (* _Harvey P. Dale_, Oct 01 2015 *)
%K nonn
%O 1,2
%A _Simon Plouffe_