13-6=7;
41-13=28=7*4
153-41=112=7*(4^2)
601-153=448=7*(4^3)
...
回複:Can you tell me why "601"?
所有跟帖:
• 佩服! 佩服! 佩服! -rosejoy- ♀ (0 bytes) () 01/08/2009 postreply 19:43:05
13-6=7;
41-13=28=7*4
153-41=112=7*(4^2)
601-153=448=7*(4^3)
...
• 佩服! 佩服! 佩服! -rosejoy- ♀ (0 bytes) () 01/08/2009 postreply 19:43:05
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