自然數的密碼
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《四》,解碼自然數:1～31,
▲(15),A≠K≠V≠T≠B,
解碼代數列式:A,K,A+K,V,A+V,K+V,A+K+V,T,A+T,K+T,A+K+T,V+T,A+V+T,K+V+T,A+K+V+T,B,A+B,K+B,A+K+B,V+B,A+V+B,K+V+B,A+K+V+B,T+B,A+T+B,K+T+B,A+K+T+B,V+T+B,A+V+T+B,K+V+T+B,A+K+V+T+B,
▲(16),當A=1,K=2,V=4,T=8,B=16,
得:1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,
▲(17),當A=1,K=16,V=8,T=4,B=2,
得:1,16,17,8,9,24,25,4,5,20,21,12,13,28,29,2,3,18,19,10,11,26,27,6,7,22,23,14,15,30,31,
▲特別指出:當A,K,V,T,B,分別任意代入1,2,4,8,16,且A≠K≠V≠T≠B時,得出的眾多數列，每條數列一定包含1～31這31個自然數，即是說，組成每條數列的自然數，一定沒重複、沒遺漏。
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