找规律奥数题1,5,8,23,47,116,257,()()

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找规律奥数题1,5,8,23,47,116,257,()()找规律奥数题1,5,8,23,47,116,257,()()找规律奥数题1,5,8,23,47,116,257,()()1,5,8,23,4

找规律奥数题1,5,8,23,47,116,257,()()
找规律奥数题1,5,8,23,47,116,257,()()

找规律奥数题1,5,8,23,47,116,257,()()
1,5,8,23,47,116,257,(605),(1376) 1*3+5=8 5*3+8=23 8*3+23=47 23*3+47=116 47*3+116=257 116*3+257=605 257*3+605=1376