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%I #9 Jan 04 2021 05:16:29
%S 1,0,1,2,2,4,4,7,8,11,13,19,21,29,34,44,52,67,78,100,117,145,171,212,
%T 248,303,356,430,504,606,707,846,986,1168,1360,1605,1861,2186,2531,
%U 2957,3415,3976,4578,5311,6103,7050,8085,9315,10654,12238,13971,16000,18230
%N Expansion of 1 + Sum_{i>=1} (x^prime(i)/Product_{j=1..i} (1-x^j)).
%Y Cf. A038499.
%K nonn
%O 0,4
%A _Jon Perry_, Jul 06 2004