Search: id:A155056
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%I A155056
%S A155056 2,3,31,37,59,61,67,71,73,101,103,107,131,137,139,151,241,307,331,349,
%T A155056 367,457,461,491,499,503,509,521,587,727,733,739,823,827
%N A155056 Primes n such that number of prime digits of prime(n) > number of nonprime 
               digits of prime(n).
%C A155056 Prime digit = 2, 3, 5 or 7. Nonprime digit = 0, 1, 4, 6, 8 or 9.
%e A155056 If n=31=prime and 127=prime(31), then 1(1)<2(2 and 7) and 31=a(3). if 
               n=37=prime and 157=prime(37), then 1(1)<2(5 and 7) and 37=a(4). If 
               n=59=prime and 277=prime(59), then 0<3(2, 7 and 7) and 59=a(5), etc.
%Y A155056 Cf. A000040, A141468.
%Y A155056 Sequence in context: A143665 A074479 A136150 this_sequence A110456 A128348 
               A029973
%Y A155056 Adjacent sequences: A155053 A155054 A155055 this_sequence A155057 A155058 
               A155059
%K A155056 nonn,base
%O A155056 1,1
%A A155056 Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jan 19 2009

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