A030784 - OEIS

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

%S 3,9,18,25,28,34,35,44,57,60,72,75,89,92,108,111,128,131,150,174,181,

%T 201,205,207,208,231,266,269,274,275,278,304,307,313,345,348,389,392,

%U 397,435,438,441,484,487,536,539,547,557,594

%N s(n)=2, where s=A030777.

%K nonn

%O 1,1

%A _Clark Kimberling_