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%I #6 Apr 11 2015 08:20:34
%S 1,2,7,30,152,913,6394,51159,460433,4604330,50647634,607771613,
%T 7901030976,110614433666,1659216504998,26547464079969,451306889359476,
%U 8123524008470582,154346956160941067,3086939123218821341
%N [ exp(5/21)*n! ].
%t Floor[Exp[5/21]Range[20]!] (* _Harvey P. Dale_, Apr 11 2015 *)
%K nonn
%O 1,2
%A _Simon Plouffe_
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