%I #3 Mar 30 2012 18:55:55

%S 1,2,5,8,12,17,23,31,40,50,62,74,88,104,122,140,160,182,204,229,255,

%T 282,312,344,376,410,444,480,520,561,604,648,696,744,794,845,899,954,

%U 1011,1069,1131,1193

%N a(n) = [ (3rd elementary symmetric function of P(n))/(2nd elementary symmetric function of P(n)) ], where P(n) = {1, p(1), p(2), ..., p(n-1)}, where p(0) = 1.

%K nonn

%O 3,2

%A _Clark Kimberling_