3 19 2,3,19,101,543,下个数字是多少?a(1)=2;a(2)=3; a(3)=2×a(1)+5×a(2)=19; a(4)=2×a(2)+5×a(3)=101; a(5)=2×a(3)+5×a... 星座解读 2024-04-16 11 #3 19