先写几个看看:-3,1,5,9,13,17,21,25,29... -4,-1,2,5,8,11,14,17,20,23,26,29..一样的有5,29观察这两个数,都满足:12n-7下面证明:12n-7=4(3n-2)+1因为n为整数,所以3n-2为整数,又:12n-7=3(4n-3)+2若设C={12n...