%I A002848 M0295 N0106
%S A002848 0,0,1,1,2,2,3,7,15,12,30,8,32,162,21
%N A002848 Number of solutions of x+y=z from {1,2,...,n}.
%D A002848 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%D A002848 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 
               (includes this sequence).
%D A002848 R. K. Guy, ``Sedlacek's Conjecture on Disjoint Solutions of x+y= z,'' 
               in Proc. Conf. Number Theory. Pullman, WA, 1971, pp. 221-223.
%D A002848 R. K. Guy, ``Packing [ 1,n ] with solutions of ax + by = cz; the unity 
               of combinatorics,'' in Colloq. Internaz. Teorie Combinatorie. Rome, 
               1973, Atti Conv. Lincei. Vol. 17, Part II, pp. 173-179, 1976.
%Y A002848 Sequence in context: A093437 A060357 A064714 this_sequence A032257 A038075 
               A032236
%Y A002848 Adjacent sequences: A002845 A002846 A002847 this_sequence A002849 A002850 
               A002851
%K A002848 nonn,more
%O A002848 1,5
%A A002848 N. J. A. Sloane (njas(AT)research.att.com).