%I #4 Mar 30 2012 18:55:55
%S 1,5,19,56,137,297,567,1013,1751,2810,4393,6597,9457,13196,18148,
%T 24593,32403,42218,54109,68001,84810,104543,127997,156197,188684,
%U 225197,266657,312693,364374,426707,496366,574928,660873,759439,866705,985827,1117711
%N a(n) = [ (3rd elementary symmetric function of P(n))/(first 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_