%I A020449
%S A020449 11,101,10111,101111,1011001,1100101,10010101,10011101,10100011,10101101,
%T A020449 10110011,10111001,11000111,11100101,11110111,11111101,100100111,
%U A020449 100111001,101001001,101001011,101100011,101101111,101111011,101111111
%N A020449 Primes that contain digits 0 and 1 only.
%C A020449 Primes which are the sums of distinct powers of 10. - Amarnath Murthy 
               (amarnath_murthy(AT)yahoo.com), Nov 19 2002
%H A020449 T. D. Noe, <a href="b020449.txt">Table of n, a(n) for n=1..1000</a>
%Y A020449 Sequence in context: A064490 A080439 A098153 this_sequence A089971 A082620 
               A156668
%Y A020449 Adjacent sequences: A020446 A020447 A020448 this_sequence A020450 A020451 
               A020452
%K A020449 nonn,base
%O A020449 1,1
%A A020449 David W. Wilson (davidwwilson(AT)comcast.net)