%I #4 Mar 30 2012 18:36:26
%S 1,2,7,31,159,958,6706,53654,482888,4828888,53117772,637413271,
%T 8286372532,116009215452,1740138231786,27842211708589,473317599046024,
%U 8519716782828440,161874618873740361,3237492377474807236
%N [ exp(2/7)*n! ].
%K nonn
%O 1,2
%A _Simon Plouffe_