%I #4 Mar 30 2012 18:56:19

%S 2,3,9,10,15,21,22,30,31,41,42,54,55,69,70,81,87,88,107,108,129,130,

%T 153,177,193,196,199,202,205,207,234,239,253,268,274,305,310,312,346,

%U 348,351,354,381,397,400,441,446,449,488,490,500

%N s(k)=1, where s=A030737.

%K nonn

%O 1,1

%A _Clark Kimberling_