Search: id:A069598
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%I A069598
%S A069598 2,3,5,7,11,101,10111,101111,1011001,1100101,10010101,10011101,
%T A069598 10100011,10101101,10110011,10111001,11000111,11100101,11110111,
%U A069598 11111101,100100111,100111001,101001001,101001011,101100011,101101111
%N A069598 Primes using only one nonzero digit (with zero digits allowed).
%C A069598 From the fifth term onwards only zeros and ones are used.
%C A069598 Any number comprised only of a string of zeros and d's where d is a digit 
               > 1 is divisible by d and not prime, so this sequence is the single-digit 
               primes {2,3,5,7} UNION A020449.
%C A069598 The repunit primes (A004022) and A116692 are subsequences.
%Y A069598 Cf. A020449, A004022, A116692.
%Y A069598 Sequence in context: A084837 A062352 A033938 this_sequence A049575 A070028 
               A084836
%Y A069598 Adjacent sequences: A069595 A069596 A069597 this_sequence A069599 A069600 
               A069601
%K A069598 nonn,base
%O A069598 1,1
%A A069598 Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 25 2002
%E A069598 Edited by Rick L. Shepherd (rshepherd2(AT)hotmail.com), Sep 04 2009

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