1>1,1,1,2,4,12,36,（）2>22,19.5,21.45,33,30.5,33.55,()3>1,1,2,4,6,36,39,1521,()4>4,11,66,74,370,379,()5>-3,6,1,-2,4,-1,-1,2,-3,()1.30,28,25,20,34,28,?a:21（以20为中心前后和相等）2.4,8,16,32,64,128,?a:256（整组相关【约分】：以4为基底）3.8,16,24,32,40,48,?a:56（整组相关：以8为基底）4.13,11,14,12,15,13,?a:16（两个一组）5.6,18,36,108,216,648,?a:1296（整组相关：乘以2和3轮流）7.2,6,18,54,162,486,?a:1...
