Search: id:A050780
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%I A050780
%S A050780 39,60,70,95,119,240,2079,2130,2183,3000,3125,3431,4250,6293,6468,9310,
%T A050780 10164,10241,10679,13433,14039,14111,15561,16199,16799,23552,24601,
%U A050780 27004,28116,28560,31416,32883,42112,44268,52193,52969,53754,59072
%N A050780 (n + sopf_n = m) and (m - sopf_m = n). Sequence gives values of n.
%C A050780 sopf_n = sum of the prime factors of n (with multiplicity).
%e A050780 E.g. 39 + (3+13) = 55 - (5+11) = 39.
%Y A050780 Cf. A050781, A050703-A050710.
%Y A050780 Sequence in context: A009633 A156333 A116281 this_sequence A039353 A043176 
               A043956
%Y A050780 Adjacent sequences: A050777 A050778 A050779 this_sequence A050781 A050782 
               A050783
%K A050780 nonn,nice
%O A050780 0,1
%A A050780 Patrick De Geest (pdg(AT)worldofnumbers.com), Sep 15 1999.

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