Search: id:A050781
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%I A050781
%S A050781 55,72,84,119,143,256,2106,2211,2279,3024,3150,3551,4284,6360,6500,
%T A050781 9350,10200,10285,10919,13560,14279,14351,15606,16463,17063,23595,
%U A050781 25011,27208,28208,28600,31460,33096,42180,44330,52320,53053,53824
%N A050781 (n + sopf_n = m) and (m - sopf_m = n). Sequence gives values of m.
%C A050781 sopf_m = sum of the prime factors of m (with multiplicity).
%e A050781 E.g. 585585 + (3+3+5+7+11+13+13) = 585640 - (2+2+2+5+11+11+11+11) = 585585.
%Y A050781 Cf. A050780, A050703-A050710.
%Y A050781 Sequence in context: A068898 A068899 A053719 this_sequence A060260 A152080 
               A119224
%Y A050781 Adjacent sequences: A050778 A050779 A050780 this_sequence A050782 A050783 
               A050784
%K A050781 nonn,nice
%O A050781 0,1
%A A050781 Patrick De Geest (pdg(AT)worldofnumbers.com), Sep 15 1999.

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