%I #5 Mar 30 2012 18:56:49
%S 4,8,12,14,24,25,40,80,108,112,116,120,122,126,130,134,216,220,224,
%T 225,229,233,240,241,336,338,348,349,364,379,380,390,392,660,662,672,
%U 673,676,677,699,700,728,972,976,980,1012,1052,1080
%N Base-3 run lengths alternate: even, odd, even,...
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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