"1",6,"4",8,"7",10,"10",12,"13",14,"16",16,"19",18,…… 规律： （1）“1”,"4","7","10","13","14",……,带引号的奇数位的规律是后面的数总比其前面相邻的数大3； （2）6,8,10,12,14,16,……,不带引号的偶数位上的数,后面的数总比其前面相邻的数大2.
