%I #6 Oct 13 2019 16:44:02
%S 0,1,2,3,5,10,15,16,21,26,31,32,37,42,47,48,53,58,63,64,85,106,127,
%T 128,149,170,191,192,213,234,255,256,320,341,362,383,426,511,512,597,
%U 640,661,682,703,767,768,853,938,960,981,1002,1023,1024,1045,1066,1087
%N Numbers whose base-4 expansions, read from left to right, have run lengths that strictly increase.
%Y Cf. A037015, A043693, A043707, A044815, A044953.
%K nonn,base
%O 0,3
%A _Patrick De Geest_, Feb 15 1999