1,2,5,14,41( ) A,121 B,122 C,123 D,144

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1,2,5,14,41()A,121B,122C,123D,1441,2,5,14,41()A,121B,122C,123D,1441,2,5,14,41()A,121B,122C,123D,144B

1,2,5,14,41( ) A,121 B,122 C,123 D,144
1,2,5,14,41( ) A,121 B,122 C,123 D,144

1,2,5,14,41( ) A,121 B,122 C,123 D,144
B,2=1+(3的0次)
5=2+(3的1次)
14=5+(3的2次)
41=14+(3的3次)
122=41+(33的4次)

B