Exercise 11/13, p. 154/156

Exercise 12/14, p. 154/156

r+s-1. An example is (2,4,6) and (1,3,5).

Exercise 13/15, p. 154/156

displaymath109

Exercise 14/16, p. 154/156

c=2 and g(n)=n-1, to obtain tex2html_wrap_inline119 .



LONG ANDREW E
Tue Oct 1 18:19:30 EDT 2002