找规律 1,4,13,40,（ ）,364
问题描述：
找规律 1,4,13,40,（ ）,364
答
1×3+1=4 4x3+1=13 13x3+1=40 40x3+1=121 121x3+1=364 因此括号里应填121
答
121
答
4-1 = 3
13 - 4 = 9 =3^2
40 -13 =27 = 3^3
括号中应该是 40 + 3^4 =121