%I A111904
%S A111904 0,0,1,1,5,12,59,107,269,641,1457,3553
%N A111904 Number of unitary amicable pairs in which the smallest member has n digits.
%H A111904 J. O. M. Pedersen, <a href="http://amicable.homepage.dk/knwnunap.htm">
               Known Unitary Amicable Pairs</a>
%H A111904 J. O. M. Pedersen, <a href="http://amicable.homepage.dk/tables.htm">Tables 
               of Aliquot Cycles</a>
%Y A111904 Cf. A002952, A002953.
%Y A111904 Sequence in context: A062978 A066961 A131549 this_sequence A015784 A129723 
               A009413
%Y A111904 Adjacent sequences: A111901 A111902 A111903 this_sequence A111905 A111906 
               A111907
%K A111904 nonn,base
%O A111904 1,5
%A A111904 N. J. A. Sloane (njas(AT)research.att.com), Nov 24 2005
%E A111904 The next term, a(13), is at least 6664.