4,7,11,18,29,47,()答案是76,规律?
-1/5,1/5,3/5,()答案是?规律?
4/17,7/13,10/9,(0答案是13/5,规律?
5,8,(),23,35答案是14,规律?
5,11,23,47,95,()答案是192,规律?
请解答的热心人士详细讲解下规律?谢谢!