规律是三个数一个周期，按照+1，+2，+3（比前一个数）规律来，有1,2,4,7,8,10,13,14,16,19,20,22,25,26,28,31,32,34,37,38,40,43,44,46,49,50,51,53,56,57,59,62,63,65,68,69,71,74,75,77,80,81,83,86,87,89,92,93,95,98,99