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January 20th, 2019, 04:00 AM  #1 
Newbie Joined: Nov 2018 From: Indianapolis Posts: 18 Thanks: 0  Please help with number strings
How do you find the nth term (edit) which have say the fifth term ascending instead of descending e.g. 576; 1025, 1728, 2816, 2241 Last edited by Jeff Shreeves; January 20th, 2019 at 04:23 AM. 
January 20th, 2019, 04:12 AM  #2 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,597 Thanks: 1038 
....1........2........3........4.........5 576; 1025, 1728, 2816, 2241 Ask a silly question, get a silly answer... 
January 20th, 2019, 04:23 AM  #3 
Newbie Joined: Nov 2018 From: Indianapolis Posts: 18 Thanks: 0  Edited the question please help
Last edited by Jeff Shreeves; January 20th, 2019 at 04:30 AM. 
January 20th, 2019, 05:09 AM  #4 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,597 Thanks: 1038 
Answer this: how do you find the 3rd term 1728? Look up "arithmetic sequences" and "geometric sequences". 
January 20th, 2019, 05:37 AM  #5 
Global Moderator Joined: Dec 2006 Posts: 20,835 Thanks: 2162 
Where did the numbers come from? Is it known why the third is three times the first?

January 20th, 2019, 06:46 AM  #6 
Newbie Joined: Nov 2018 From: Indianapolis Posts: 18 Thanks: 0  
January 20th, 2019, 08:22 AM  #7 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,597 Thanks: 1038 
Repeating Skipjack's question: WHERE did the numbers come from? WHAT do they represent? The month to month reduction of the rat population in Timbuktu? 

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number, sequences, strings 
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