%I A015931
%S A015931 513,531,549,585,603,639,657,711,747,801,873,909,927,945,963,981,
%T A015931 1017,1143,1179,1197,1209,1233,1251,1341,1359,1365,1413,1467,1472,
%U A015931 1503,1504,1557,1611,1629,1665,1719,1737,1773,1785,1791,1899,1971
%N A015931 Numbers n such that n | 2^n - 2^9.
%Y A015931 Sequence in context: A017553 A087931 A044879 this_sequence A060947 A066697 
               A076338
%Y A015931 Adjacent sequences: A015928 A015929 A015930 this_sequence A015932 A015933 
               A015934
%K A015931 nonn
%O A015931 1,1
%A A015931 Robert G. Wilson v (rgwv(AT)rgwv.com)