%I A027565
%S A027565 1,462,52061,33952307
%N A027565 Largest number not of form k_1 k_2 .. k_n (1/k_1 + .. + 1/k_n), k_i integers 
               >= 1.
%e A027565 For n=2, the largest number not of the form k_1+k_2 with k_1>=1, k_2>
               =1 is 1! So a(2) = 1. For n=3 the largest number not of the form 
               ab+bc+ca (a,b,c >= 1) is believed to be 462 (see A025052).
%Y A027565 See A025052 for numbers of form ab+bc+ca (which is the case n=3), A027563 
               for n=4, A027564 for n=5. See also A027566.
%Y A027565 Sequence in context: A027816 A027823 A023912 this_sequence A035847 A140905 
               A025038
%Y A027565 Adjacent sequences: A027562 A027563 A027564 this_sequence A027566 A027567 
               A027568
%K A027565 nonn,nice,hard
%O A027565 2,2
%A A027565 R. H. Hardin (rhhardin(AT)att.net)