%I A082550
%S A082550 1,1,3,3,7,11,19,31,59,103,187,343,631,1171,2191,4095,7711,14571,27595,
%T A082550 52431,99879
%N A082550 Number of sets of distinct positive integers whose arithmetic mean is 
               an integer, the largest integer of the set being n.
%C A082550 a(n) = A051293(n+1) - A051293(n). - Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), 
               Feb 19 2006
%e A082550 a(5) = 7: the seven sets are (1+2+3+4+5)/5 = 3, 5/1 = 5, (1+5)/2 = 3, 
               (1+3+5)/3 = 3, (3+5)/2 = 4, (3+4+5)/3 = 4, (1+2+4+5)/4 = 3.
%Y A082550 Equals A063776(n) - 1.
%Y A082550 Sequence in context: A136445 A052989 A022403 this_sequence A036056 A161815 
               A006661
%Y A082550 Adjacent sequences: A082547 A082548 A082549 this_sequence A082551 A082552 
               A082553
%K A082550 easy,nonn
%O A082550 1,3
%A A082550 Naohiro Nomoto (n_nomoto(AT)yabumi.com), May 03 2003