Search: id:A057874
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%I A057874
%S A057874 95,119,143,174191,175031,175871,298687992,298688708,298689424
%N A057874 Sets of three composites in bidirectional 'sum of prime factors' progression/
               retrogression.
%C A057874 First term of next set > 2000000000.
%H A057874 <a href="Sindx_Pri.html#primes_AP">Index entries for sequences related 
               to primes in arithmetic progressions</a>
%e A057874 First set is (95,119,143) all terms having 'sum of prime factors' = 24. 
               So '95' + (5+19) = '119' + (7+17) = '143' AND '143' - (11+13) = '119' 
               - (7+17) = '95'.
%Y A057874 Cf. A050780, A050781, A050703-A050710.
%Y A057874 Sequence in context: A057654 A046005 A045121 this_sequence A112135 A074237 
               A134217
%Y A057874 Adjacent sequences: A057871 A057872 A057873 this_sequence A057875 A057876 
               A057877
%K A057874 nonn,hard
%O A057874 0,1
%A A057874 Patrick De Geest (pdg(AT)worldofnumbers.com), Sep 15 2000.
%E A057874 This really seems to be three sequences, not one! Should be split. - 
               N. J. A. Sloane (njas(AT)research.att.com).

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