A043684 - OEIS

%I #7 Apr 13 2021 23:07:32

%S 85,149,165,169,170,171,173,181,213,277,293,297,298,299,301,309,325,

%T 329,330,331,333,337,338,339,340,342,343,345,346,347,349,357,361,362,

%U 363,365,373,405,421,425,426,427,429,437,469,533

%N a(n) = (1/2)*(n-th number whose base-2 representation has exactly 8 runs).

%K nonn,base

%O 1,1

%A _Clark Kimberling_