|
%I M2581 #7 Mar 30 2012 16:45:02
%S 3,6,15,24,33,48,63,90
%N Restricted postage stamp problem.
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%D S. S. Wagstaff, Jr., Additive h-bases for n, pp. 302-327 of Number Theory Carbondale 1979, Lect. Notes Math. 751 (1982).
%K nonn
%O 1,1
%A _N. J. A. Sloane_.
|
