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January 20th, 2019, 04:00 AM   #1
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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.
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January 20th, 2019, 04:12 AM   #2
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....1........2........3........4.........5
-576; -1025, -1728, -2816, -2241

Ask a silly question, get a silly answer...
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January 20th, 2019, 04:23 AM   #3
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Quote:
Originally Posted by Denis View Post
....1........2........3........4.........5
-576; -1025, -1728, -2816, -2241

Ask a silly question, get a silly answer...
Edited the question please help

Last edited by Jeff Shreeves; January 20th, 2019 at 04:30 AM.
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January 20th, 2019, 05:09 AM   #4
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Answer this: how do you find the 3rd term -1728?

Look up "arithmetic sequences" and "geometric sequences".
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January 20th, 2019, 05:37 AM   #5
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Where did the numbers come from? Is it known why the third is three times the first?
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January 20th, 2019, 06:46 AM   #6
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Quote:
Originally Posted by skipjack View Post
Where did the numbers come from? Is it known why the third is three times the first?
Why does the third being three times the first help ?
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January 20th, 2019, 08:22 AM   #7
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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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