找规律 1,4,13,40,( ),364

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找规律1,4,13,40,(),364找规律1,4,13,40,(),364找规律1,4,13,40,(),3644-1=313-4=9=3^240-13=27=3^3括号中应该是40+3^4=121

找规律 1,4,13,40,( ),364
找规律 1,4,13,40,( ),364

找规律 1,4,13,40,( ),364
4-1 = 3
13 - 4 = 9 =3^2
40 -13 =27 = 3^3
括号中应该是 40 + 3^4 =121

121

1×3+1=4 4x3+1=13 13x3+1=40 40x3+1=121 121x3+1=364 因此括号里应填121