%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_