%I #7 Apr 13 2021 23:07:50

%S 1365,2389,2645,2709,2725,2729,2730,2731,2733,2741,2773,2901,3413,

%T 4437,4693,4757,4773,4777,4778,4779,4781,4789,4821,4949,5205,5269,

%U 5285,5289,5290,5291,5293,5301,5333,5397,5413,5417

%N a(n) = (1/2)*(n-th number whose base-2 representation has exactly 12 runs).

%K nonn,base

%O 1,1

%A _Clark Kimberling_