This paper discusses the 3x+1 problem,gives an estimate of the range of the questionable num-bers which make this conjecture untenable,derives a recurrence relation,and simplifies the 3x+1 operation by the ternary number system.
本文对使叙拉古猜想不成立的可疑数范围,给出了较[1]更精确的结论,还导出一个递推关系,并用三进数制简化了叙拉古运算。
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