%I A001284
%S A001284 6,12,15,20,24,28,30,35,40,42,45,48,54,56,60,63,66,70,72,77,80,84,
%T A001284 88,90,91,96,99,104,108,110,112,117,120,126,130,132,135,140,143,
%U A001284 144,150,153,154,156
%N A001284 Numbers of form m*k with m+1 <= k <= 2m-1.
%Y A001284 Sequence in context: A066312 A089341 A129494 this_sequence A063931 A001283 
               A106430
%Y A001284 Adjacent sequences: A001281 A001282 A001283 this_sequence A001285 A001286 
               A001287
%K A001284 nonn,easy
%O A001284 2,1
%A A001284 N. J. A. Sloane (njas(AT)research.att.com).